diff --git a/Meta/Lagom/Fuzzers/FuzzCyrillicDecoder.cpp b/Meta/Lagom/Fuzzers/FuzzCyrillicDecoder.cpp
index 647dd540204..a27cf26f17b 100644
--- a/Meta/Lagom/Fuzzers/FuzzCyrillicDecoder.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzCyrillicDecoder.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibTextCodec/Decoder.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzGIFLoader.cpp b/Meta/Lagom/Fuzzers/FuzzGIFLoader.cpp
index 6730ef50d63..944aa5b0b7d 100644
--- a/Meta/Lagom/Fuzzers/FuzzGIFLoader.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzGIFLoader.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Format.h>
 #include <LibGfx/ImageFormats/GIFLoader.h>
 #include <stddef.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzHebrewDecoder.cpp b/Meta/Lagom/Fuzzers/FuzzHebrewDecoder.cpp
index cfe0873317e..e96182307c7 100644
--- a/Meta/Lagom/Fuzzers/FuzzHebrewDecoder.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzHebrewDecoder.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibTextCodec/Decoder.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzLatin1Decoder.cpp b/Meta/Lagom/Fuzzers/FuzzLatin1Decoder.cpp
index 8a2b667995b..0714b29295f 100644
--- a/Meta/Lagom/Fuzzers/FuzzLatin1Decoder.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzLatin1Decoder.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibTextCodec/Decoder.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzLatin2Decoder.cpp b/Meta/Lagom/Fuzzers/FuzzLatin2Decoder.cpp
index 3fb16d631e8..ae4b658bf97 100644
--- a/Meta/Lagom/Fuzzers/FuzzLatin2Decoder.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzLatin2Decoder.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibTextCodec/Decoder.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzQuotedPrintableParser.cpp b/Meta/Lagom/Fuzzers/FuzzQuotedPrintableParser.cpp
index c563d53bb2d..62adc76b468 100644
--- a/Meta/Lagom/Fuzzers/FuzzQuotedPrintableParser.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzQuotedPrintableParser.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/StringView.h>
 #include <LibIMAP/QuotedPrintable.h>
 
diff --git a/Meta/Lagom/Fuzzers/FuzzUTF16BEDecoder.cpp b/Meta/Lagom/Fuzzers/FuzzUTF16BEDecoder.cpp
index a24fb5e8e38..1b419c63de4 100644
--- a/Meta/Lagom/Fuzzers/FuzzUTF16BEDecoder.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzUTF16BEDecoder.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibTextCodec/Decoder.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/Meta/Lagom/Fuzzers/FuzzilliJs.cpp b/Meta/Lagom/Fuzzers/FuzzilliJs.cpp
index 890dbdc7753..e66b285c2fd 100644
--- a/Meta/Lagom/Fuzzers/FuzzilliJs.cpp
+++ b/Meta/Lagom/Fuzzers/FuzzilliJs.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Format.h>
 #include <AK/Function.h>
 #include <AK/StringView.h>
diff --git a/Userland/Applications/3DFileViewer/MeshLoader.h b/Userland/Applications/3DFileViewer/MeshLoader.h
index dd0dae08b4a..62c6ae609cc 100644
--- a/Userland/Applications/3DFileViewer/MeshLoader.h
+++ b/Userland/Applications/3DFileViewer/MeshLoader.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <LibCore/Forward.h>
 
 #include "Common.h"
diff --git a/Userland/Applications/Browser/IconBag.cpp b/Userland/Applications/Browser/IconBag.cpp
index f9a85ad1d4f..7a8e67fbb08 100644
--- a/Userland/Applications/Browser/IconBag.cpp
+++ b/Userland/Applications/Browser/IconBag.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <Applications/Browser/IconBag.h>
 
 namespace Browser {
diff --git a/Userland/Applications/Escalator/EscalatorWindow.h b/Userland/Applications/Escalator/EscalatorWindow.h
index fa3f297528e..02940936450 100644
--- a/Userland/Applications/Escalator/EscalatorWindow.h
+++ b/Userland/Applications/Escalator/EscalatorWindow.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/StringView.h>
 #include <AK/Vector.h>
 #include <LibCore/Account.h>
diff --git a/Userland/Applications/PixelPaint/IconBag.cpp b/Userland/Applications/PixelPaint/IconBag.cpp
index 2e344d8d430..dd68efbab43 100644
--- a/Userland/Applications/PixelPaint/IconBag.cpp
+++ b/Userland/Applications/PixelPaint/IconBag.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <Applications/PixelPaint/IconBag.h>
 
 namespace PixelPaint {
diff --git a/Userland/Applications/PixelPaint/ProjectLoader.cpp b/Userland/Applications/PixelPaint/ProjectLoader.cpp
index c5ff7619862..4d8e13b15d8 100644
--- a/Userland/Applications/PixelPaint/ProjectLoader.cpp
+++ b/Userland/Applications/PixelPaint/ProjectLoader.cpp
@@ -7,7 +7,6 @@
 #include "ProjectLoader.h"
 #include "Image.h"
 #include "Layer.h"
-#include <AK/DeprecatedString.h>
 #include <AK/JsonObject.h>
 #include <AK/Result.h>
 #include <LibCore/MappedFile.h>
diff --git a/Userland/Games/2048/Game.cpp b/Userland/Games/2048/Game.cpp
index 5552d63be31..51bb55a863b 100644
--- a/Userland/Games/2048/Game.cpp
+++ b/Userland/Games/2048/Game.cpp
@@ -6,7 +6,6 @@
 
 #include "Game.h"
 #include <AK/Array.h>
-#include <AK/DeprecatedString.h>
 #include <AK/NumericLimits.h>
 #include <AK/ScopeGuard.h>
 #include <stdlib.h>
diff --git a/Userland/Libraries/LibC/grp.cpp b/Userland/Libraries/LibC/grp.cpp
index 376f95e872b..721a99c3334 100644
--- a/Userland/Libraries/LibC/grp.cpp
+++ b/Userland/Libraries/LibC/grp.cpp
@@ -5,7 +5,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
+#include <AK/Format.h>
 #include <AK/ScopeGuard.h>
 #include <AK/Vector.h>
 #include <errno.h>
diff --git a/Userland/Libraries/LibC/pwd.cpp b/Userland/Libraries/LibC/pwd.cpp
index 6ea61a4fa99..a7e918dfb07 100644
--- a/Userland/Libraries/LibC/pwd.cpp
+++ b/Userland/Libraries/LibC/pwd.cpp
@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
+#include <AK/Format.h>
 #include <AK/ScopeGuard.h>
 #include <AK/TemporaryChange.h>
 #include <AK/Vector.h>
diff --git a/Userland/Libraries/LibC/time.cpp b/Userland/Libraries/LibC/time.cpp
index 081dff5967e..450a25a6897 100644
--- a/Userland/Libraries/LibC/time.cpp
+++ b/Userland/Libraries/LibC/time.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/DateConstants.h>
-#include <AK/DeprecatedString.h>
 #include <AK/StringBuilder.h>
 #include <AK/Time.h>
 #include <Kernel/API/TimePage.h>
diff --git a/Userland/Libraries/LibCore/Event.h b/Userland/Libraries/LibCore/Event.h
index 44bd1360677..fa3cf1697a0 100644
--- a/Userland/Libraries/LibCore/Event.h
+++ b/Userland/Libraries/LibCore/Event.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Function.h>
 #include <AK/Types.h>
 #include <AK/WeakPtr.h>
diff --git a/Userland/Libraries/LibCore/FilePermissionsMask.h b/Userland/Libraries/LibCore/FilePermissionsMask.h
index 011a426cc94..2b95070daa7 100644
--- a/Userland/Libraries/LibCore/FilePermissionsMask.h
+++ b/Userland/Libraries/LibCore/FilePermissionsMask.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Error.h>
 #include <AK/OwnPtr.h>
 #include <sys/stat.h>
diff --git a/Userland/Libraries/LibCore/MappedFile.cpp b/Userland/Libraries/LibCore/MappedFile.cpp
index ca4666cab22..af0b5330622 100644
--- a/Userland/Libraries/LibCore/MappedFile.cpp
+++ b/Userland/Libraries/LibCore/MappedFile.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/ScopeGuard.h>
 #include <LibCore/File.h>
 #include <LibCore/MappedFile.h>
diff --git a/Userland/Libraries/LibCrypto/Curves/SECP256r1.cpp b/Userland/Libraries/LibCrypto/Curves/SECP256r1.cpp
index d1ab81df10e..97272fdbe4a 100644
--- a/Userland/Libraries/LibCrypto/Curves/SECP256r1.cpp
+++ b/Userland/Libraries/LibCrypto/Curves/SECP256r1.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/ByteReader.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 #include <AK/Random.h>
 #include <AK/StringBuilder.h>
diff --git a/Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h b/Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h
index e7025b515bb..63db8b69642 100644
--- a/Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h
+++ b/Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h
@@ -9,7 +9,6 @@
 #include "AttributeValue.h"
 #include "DwarfTypes.h"
 #include <AK/ByteBuffer.h>
-#include <AK/DeprecatedString.h>
 #include <AK/NonnullRefPtr.h>
 #include <AK/RedBlackTree.h>
 #include <AK/RefCounted.h>
diff --git a/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp b/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
index fcd591ef03a..88f26d04df3 100644
--- a/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
+++ b/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
@@ -6,7 +6,6 @@
 
 #include "LineProgram.h"
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Function.h>
 #include <AK/LEB128.h>
 #include <AK/StringBuilder.h>
diff --git a/Userland/Libraries/LibDeviceTree/Validation.cpp b/Userland/Libraries/LibDeviceTree/Validation.cpp
index 892a3844038..2b441b55822 100644
--- a/Userland/Libraries/LibDeviceTree/Validation.cpp
+++ b/Userland/Libraries/LibDeviceTree/Validation.cpp
@@ -6,7 +6,6 @@
 
 #include <AK/AllOf.h>
 #include <AK/CharacterTypes.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 #include <AK/Format.h>
 #include <AK/Try.h>
diff --git a/Userland/Libraries/LibGUI/ModelIndex.cpp b/Userland/Libraries/LibGUI/ModelIndex.cpp
index 878e6f9ff2e..751f0442610 100644
--- a/Userland/Libraries/LibGUI/ModelIndex.cpp
+++ b/Userland/Libraries/LibGUI/ModelIndex.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibGUI/Model.h>
 #include <LibGUI/Variant.h>
 
diff --git a/Userland/Libraries/LibGUI/TextPosition.h b/Userland/Libraries/LibGUI/TextPosition.h
index de15f3009df..519302a96ad 100644
--- a/Userland/Libraries/LibGUI/TextPosition.h
+++ b/Userland/Libraries/LibGUI/TextPosition.h
@@ -6,7 +6,7 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
+#include <AK/Format.h>
 
 namespace GUI {
 
diff --git a/Userland/Libraries/LibGUI/VimEditingEngine.cpp b/Userland/Libraries/LibGUI/VimEditingEngine.cpp
index be69a72cc82..c5db672af4a 100644
--- a/Userland/Libraries/LibGUI/VimEditingEngine.cpp
+++ b/Userland/Libraries/LibGUI/VimEditingEngine.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/Assertions.h>
-#include <AK/DeprecatedString.h>
 #include <LibGUI/Event.h>
 #include <LibGUI/TextEditor.h>
 #include <LibGUI/VimEditingEngine.h>
diff --git a/Userland/Libraries/LibGemini/GeminiRequest.h b/Userland/Libraries/LibGemini/GeminiRequest.h
index 97ff92989bf..d4e0179bf98 100644
--- a/Userland/Libraries/LibGemini/GeminiRequest.h
+++ b/Userland/Libraries/LibGemini/GeminiRequest.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Optional.h>
 #include <AK/URL.h>
 #include <LibCore/Forward.h>
diff --git a/Userland/Libraries/LibGfx/Font/Emoji.cpp b/Userland/Libraries/LibGfx/Font/Emoji.cpp
index 9c11cc93b52..8a9b75effa7 100644
--- a/Userland/Libraries/LibGfx/Font/Emoji.cpp
+++ b/Userland/Libraries/LibGfx/Font/Emoji.cpp
@@ -6,7 +6,6 @@
  */
 
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 #include <AK/LexicalPath.h>
 #include <AK/Span.h>
diff --git a/Userland/Libraries/LibGfx/ICC/TagTypes.cpp b/Userland/Libraries/LibGfx/ICC/TagTypes.cpp
index fa587c4ed38..b012a8f024c 100644
--- a/Userland/Libraries/LibGfx/ICC/TagTypes.cpp
+++ b/Userland/Libraries/LibGfx/ICC/TagTypes.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 #include <LibGfx/ICC/BinaryFormat.h>
 #include <LibGfx/ICC/TagTypes.h>
diff --git a/Userland/Libraries/LibGfx/ImageFormats/DDSLoader.cpp b/Userland/Libraries/LibGfx/ImageFormats/DDSLoader.cpp
index 8f2f889f8b9..294ee6a6de5 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/DDSLoader.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/DDSLoader.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 #include <AK/Error.h>
 #include <AK/MemoryStream.h>
diff --git a/Userland/Libraries/LibGfx/ImageFormats/PortableImageLoaderCommon.h b/Userland/Libraries/LibGfx/ImageFormats/PortableImageLoaderCommon.h
index 0733774a07b..c14f312a0b1 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/PortableImageLoaderCommon.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/PortableImageLoaderCommon.h
@@ -8,7 +8,6 @@
 #pragma once
 
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 #include <AK/ScopeGuard.h>
 #include <AK/String.h>
diff --git a/Userland/Libraries/LibGfx/ImageFormats/QOIWriter.cpp b/Userland/Libraries/LibGfx/ImageFormats/QOIWriter.cpp
index 4abd119dd47..9e6159b620c 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/QOIWriter.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/QOIWriter.cpp
@@ -5,7 +5,6 @@
  */
 
 #include "QOIWriter.h"
-#include <AK/DeprecatedString.h>
 #include <AK/Endian.h>
 
 namespace Gfx {
diff --git a/Userland/Libraries/LibJS/Interpreter.h b/Userland/Libraries/LibJS/Interpreter.h
index ab441e4644a..52dddd78fff 100644
--- a/Userland/Libraries/LibJS/Interpreter.h
+++ b/Userland/Libraries/LibJS/Interpreter.h
@@ -8,7 +8,6 @@
 #pragma once
 
 #include <AK/DeprecatedFlyString.h>
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 #include <AK/Weakable.h>
 #include <LibJS/Forward.h>
diff --git a/Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp b/Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp
index 958811fe537..e8d6d6f4d6e 100644
--- a/Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibJS/Runtime/AbstractOperations.h>
 #include <LibJS/Runtime/BigInt.h>
 #include <LibJS/Runtime/BigIntConstructor.h>
diff --git a/Userland/Libraries/LibJS/Runtime/Object.h b/Userland/Libraries/LibJS/Runtime/Object.h
index 5ac60fa815c..cea4538d10f 100644
--- a/Userland/Libraries/LibJS/Runtime/Object.h
+++ b/Userland/Libraries/LibJS/Runtime/Object.h
@@ -8,7 +8,6 @@
 #pragma once
 
 #include <AK/Badge.h>
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 #include <AK/StringView.h>
 #include <LibJS/Forward.h>
diff --git a/Userland/Libraries/LibJS/Runtime/Reference.h b/Userland/Libraries/LibJS/Runtime/Reference.h
index 612165ef2fb..acf16722637 100644
--- a/Userland/Libraries/LibJS/Runtime/Reference.h
+++ b/Userland/Libraries/LibJS/Runtime/Reference.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <LibJS/Runtime/Environment.h>
 #include <LibJS/Runtime/EnvironmentCoordinate.h>
 #include <LibJS/Runtime/PropertyKey.h>
diff --git a/Userland/Libraries/LibJS/Runtime/RegExpLegacyStaticProperties.h b/Userland/Libraries/LibJS/Runtime/RegExpLegacyStaticProperties.h
index 5ee4d37d542..7b4a4e04f3b 100644
--- a/Userland/Libraries/LibJS/Runtime/RegExpLegacyStaticProperties.h
+++ b/Userland/Libraries/LibJS/Runtime/RegExpLegacyStaticProperties.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Optional.h>
 #include <LibJS/Forward.h>
 #include <LibJS/Runtime/Utf16String.h>
diff --git a/Userland/Libraries/LibLine/KeyCallbackMachine.h b/Userland/Libraries/LibLine/KeyCallbackMachine.h
index 365af248ed2..bac18789678 100644
--- a/Userland/Libraries/LibLine/KeyCallbackMachine.h
+++ b/Userland/Libraries/LibLine/KeyCallbackMachine.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Function.h>
 #include <AK/HashMap.h>
 #include <AK/Vector.h>
diff --git a/Userland/Libraries/LibLine/SuggestionDisplay.h b/Userland/Libraries/LibLine/SuggestionDisplay.h
index 99ee3ae1e4e..e83a7405229 100644
--- a/Userland/Libraries/LibLine/SuggestionDisplay.h
+++ b/Userland/Libraries/LibLine/SuggestionDisplay.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Forward.h>
 #include <LibLine/StringMetrics.h>
 #include <LibLine/SuggestionManager.h>
diff --git a/Userland/Libraries/LibPDF/Operator.h b/Userland/Libraries/LibPDF/Operator.h
index 4ec3fc3cd7d..59d4779c155 100644
--- a/Userland/Libraries/LibPDF/Operator.h
+++ b/Userland/Libraries/LibPDF/Operator.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Format.h>
 #include <AK/StringBuilder.h>
 #include <AK/Vector.h>
diff --git a/Userland/Libraries/LibRegex/RegexError.h b/Userland/Libraries/LibRegex/RegexError.h
index 8b29cefadf1..27eeab5886a 100644
--- a/Userland/Libraries/LibRegex/RegexError.h
+++ b/Userland/Libraries/LibRegex/RegexError.h
@@ -6,7 +6,7 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
+#include <AK/StringView.h>
 #include <AK/Types.h>
 #ifdef AK_OS_SERENITY
 #    include <bits/regex_defs.h>
diff --git a/Userland/Libraries/LibSQL/Result.h b/Userland/Libraries/LibSQL/Result.h
index bf85ea60038..16e32229540 100644
--- a/Userland/Libraries/LibSQL/Result.h
+++ b/Userland/Libraries/LibSQL/Result.h
@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <AK/DeprecatedString.h>
 #include <AK/Error.h>
 #include <AK/Noncopyable.h>
 #include <LibSQL/Type.h>
diff --git a/Userland/Libraries/LibSQL/Type.h b/Userland/Libraries/LibSQL/Type.h
index 7cf649a2c9a..bc44126ccdb 100644
--- a/Userland/Libraries/LibSQL/Type.h
+++ b/Userland/Libraries/LibSQL/Type.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 #include <AK/StringView.h>
 
diff --git a/Userland/Libraries/LibVideo/VP9/Parser.cpp b/Userland/Libraries/LibVideo/VP9/Parser.cpp
index 81ce1cac219..8f2e22247f0 100644
--- a/Userland/Libraries/LibVideo/VP9/Parser.cpp
+++ b/Userland/Libraries/LibVideo/VP9/Parser.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/MemoryStream.h>
 #include <LibGfx/Point.h>
 #include <LibGfx/Size.h>
diff --git a/Userland/Libraries/LibWeb/Bindings/Intrinsics.cpp b/Userland/Libraries/LibWeb/Bindings/Intrinsics.cpp
index bb8798059f8..7bdbbd0485d 100644
--- a/Userland/Libraries/LibWeb/Bindings/Intrinsics.cpp
+++ b/Userland/Libraries/LibWeb/Bindings/Intrinsics.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 #include <LibJS/Forward.h>
 #include <LibJS/Runtime/NativeFunction.h>
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValue.h
index ebb8cdd8f63..829f3ff4c2f 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValue.h
@@ -10,7 +10,6 @@
 #pragma once
 
 #include <AK/Concepts.h>
-#include <AK/DeprecatedString.h>
 #include <AK/GenericShorthands.h>
 #include <AK/NonnullOwnPtr.h>
 #include <AK/RefCounted.h>
diff --git a/Userland/Libraries/LibWeb/HTML/Canvas/CanvasDrawImage.h b/Userland/Libraries/LibWeb/HTML/Canvas/CanvasDrawImage.h
index 3f22046983a..2bcdd4ffd63 100644
--- a/Userland/Libraries/LibWeb/HTML/Canvas/CanvasDrawImage.h
+++ b/Userland/Libraries/LibWeb/HTML/Canvas/CanvasDrawImage.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <LibWeb/HTML/HTMLCanvasElement.h>
 #include <LibWeb/HTML/HTMLImageElement.h>
 #include <LibWeb/WebIDL/ExceptionOr.h>
diff --git a/Userland/Libraries/LibWeb/HTML/Worker.cpp b/Userland/Libraries/LibWeb/HTML/Worker.cpp
index 877095c25e0..2d210475294 100644
--- a/Userland/Libraries/LibWeb/HTML/Worker.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Worker.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/Debug.h>
-#include <AK/DeprecatedString.h>
 #include <LibJS/Runtime/ConsoleObject.h>
 #include <LibJS/Runtime/Realm.h>
 #include <LibWeb/Bindings/MainThreadVM.h>
diff --git a/Userland/Libraries/LibWeb/HTML/WorkerLocation.cpp b/Userland/Libraries/LibWeb/HTML/WorkerLocation.cpp
index 8c84c3bce0d..2fcca48565b 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerLocation.cpp
+++ b/Userland/Libraries/LibWeb/HTML/WorkerLocation.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibWeb/HTML/WorkerGlobalScope.h>
 #include <LibWeb/HTML/WorkerLocation.h>
 
diff --git a/Userland/Libraries/LibWeb/MimeSniff/MimeType.h b/Userland/Libraries/LibWeb/MimeSniff/MimeType.h
index bc2919e572e..84805f21764 100644
--- a/Userland/Libraries/LibWeb/MimeSniff/MimeType.h
+++ b/Userland/Libraries/LibWeb/MimeSniff/MimeType.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/HashMap.h>
 
 namespace Web::MimeSniff {
diff --git a/Userland/Libraries/LibWeb/SVG/AttributeParser.h b/Userland/Libraries/LibWeb/SVG/AttributeParser.h
index 936d3b45924..618406554a4 100644
--- a/Userland/Libraries/LibWeb/SVG/AttributeParser.h
+++ b/Userland/Libraries/LibWeb/SVG/AttributeParser.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Vector.h>
 #include <LibGfx/Point.h>
 
diff --git a/Userland/Libraries/LibWeb/URL/URL.h b/Userland/Libraries/LibWeb/URL/URL.h
index e290e329909..449d55ff86f 100644
--- a/Userland/Libraries/LibWeb/URL/URL.h
+++ b/Userland/Libraries/LibWeb/URL/URL.h
@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/URL.h>
 #include <LibWeb/Bindings/PlatformObject.h>
 #include <LibWeb/URL/URLSearchParams.h>
diff --git a/Userland/Services/ChessEngine/MCTSTree.cpp b/Userland/Services/ChessEngine/MCTSTree.cpp
index a23879fe5a4..3061398c7ad 100644
--- a/Userland/Services/ChessEngine/MCTSTree.cpp
+++ b/Userland/Services/ChessEngine/MCTSTree.cpp
@@ -5,7 +5,6 @@
  */
 
 #include "MCTSTree.h"
-#include <AK/DeprecatedString.h>
 #include <stdlib.h>
 
 MCTSTree::MCTSTree(Chess::Board const& board, MCTSTree* parent)
diff --git a/Userland/Services/SQLServer/SQLStatement.h b/Userland/Services/SQLServer/SQLStatement.h
index 2f23e86c990..65abc8ce6c0 100644
--- a/Userland/Services/SQLServer/SQLStatement.h
+++ b/Userland/Services/SQLServer/SQLStatement.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/NonnullRefPtr.h>
 #include <AK/Vector.h>
 #include <LibCore/Object.h>
diff --git a/Userland/Services/TelnetServer/Client.cpp b/Userland/Services/TelnetServer/Client.cpp
index f4d5d0e28bc..7d1efc740d7 100644
--- a/Userland/Services/TelnetServer/Client.cpp
+++ b/Userland/Services/TelnetServer/Client.cpp
@@ -7,7 +7,6 @@
 #include "Client.h"
 
 #include <AK/ByteBuffer.h>
-#include <AK/DeprecatedString.h>
 #include <AK/MemoryStream.h>
 #include <AK/StringBuilder.h>
 #include <AK/StringView.h>
diff --git a/Userland/Services/TelnetServer/Client.h b/Userland/Services/TelnetServer/Client.h
index ab3c565683f..32836e487fc 100644
--- a/Userland/Services/TelnetServer/Client.h
+++ b/Userland/Services/TelnetServer/Client.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/StringView.h>
 #include <AK/Types.h>
 #include <LibCore/Notifier.h>
diff --git a/Userland/Services/TelnetServer/Parser.cpp b/Userland/Services/TelnetServer/Parser.cpp
index 78a5b1dfd2a..3e84ffab2de 100644
--- a/Userland/Services/TelnetServer/Parser.cpp
+++ b/Userland/Services/TelnetServer/Parser.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Types.h>
 
 #include "Parser.h"
diff --git a/Userland/Services/TelnetServer/Parser.h b/Userland/Services/TelnetServer/Parser.h
index 0cccec00dcf..d57754fbd8b 100644
--- a/Userland/Services/TelnetServer/Parser.h
+++ b/Userland/Services/TelnetServer/Parser.h
@@ -6,7 +6,6 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
 #include <AK/Function.h>
 #include <AK/StringView.h>
 #include <AK/Types.h>
diff --git a/Userland/Services/WindowServer/VirtualScreenBackend.h b/Userland/Services/WindowServer/VirtualScreenBackend.h
index 12f35ca3aec..c3ed60a70c7 100644
--- a/Userland/Services/WindowServer/VirtualScreenBackend.h
+++ b/Userland/Services/WindowServer/VirtualScreenBackend.h
@@ -8,7 +8,6 @@
 
 #include "ScreenBackend.h"
 #include "ScreenLayout.h"
-#include <AK/DeprecatedString.h>
 #include <AK/Error.h>
 #include <AK/Span.h>
 
diff --git a/Userland/Shell/Execution.h b/Userland/Shell/Execution.h
index edf4d6a9d42..da42ece0c4f 100644
--- a/Userland/Shell/Execution.h
+++ b/Userland/Shell/Execution.h
@@ -7,7 +7,6 @@
 #pragma once
 
 #include "Forward.h"
-#include <AK/DeprecatedString.h>
 #include <AK/Forward.h>
 #include <AK/Vector.h>
 #include <LibCore/ElapsedTimer.h>
diff --git a/Userland/Utilities/allocate.cpp b/Userland/Utilities/allocate.cpp
index fd9aa55ec10..d9fb772325e 100644
--- a/Userland/Utilities/allocate.cpp
+++ b/Userland/Utilities/allocate.cpp
@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
+#include <AK/Format.h>
 #include <AK/Optional.h>
 #include <LibCore/ElapsedTimer.h>
 #include <LibMain/Main.h>
diff --git a/Userland/Utilities/date.cpp b/Userland/Utilities/date.cpp
index 1b473fb2b7d..ab876f2aa18 100644
--- a/Userland/Utilities/date.cpp
+++ b/Userland/Utilities/date.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DateTime.h>
 #include <LibCore/System.h>
diff --git a/Userland/Utilities/kill.cpp b/Userland/Utilities/kill.cpp
index aed9b07a62a..ec580a92eec 100644
--- a/Userland/Utilities/kill.cpp
+++ b/Userland/Utilities/kill.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Optional.h>
 #include <LibCore/System.h>
 #include <LibMain/Main.h>
diff --git a/Userland/Utilities/lsusb.cpp b/Userland/Utilities/lsusb.cpp
index 1f8af13b458..031fa618a9b 100644
--- a/Userland/Utilities/lsusb.cpp
+++ b/Userland/Utilities/lsusb.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/ByteBuffer.h>
-#include <AK/DeprecatedString.h>
 #include <AK/FixedArray.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/seq.cpp b/Userland/Utilities/seq.cpp
index ba9f77746c3..5436df0c6c4 100644
--- a/Userland/Utilities/seq.cpp
+++ b/Userland/Utilities/seq.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Format.h>
 #include <AK/StdLibExtras.h>
 #include <AK/Vector.h>
diff --git a/Userland/Utilities/shuf.cpp b/Userland/Utilities/shuf.cpp
index ad42e3df680..ad0f62f6dc1 100644
--- a/Userland/Utilities/shuf.cpp
+++ b/Userland/Utilities/shuf.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <AK/Random.h>
 #include <AK/Vector.h>
 #include <LibCore/ArgsParser.h>
diff --git a/Userland/Utilities/stat.cpp b/Userland/Utilities/stat.cpp
index 7f240831bfa..a8f2840e6a1 100644
--- a/Userland/Utilities/stat.cpp
+++ b/Userland/Utilities/stat.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DateTime.h>
 #include <LibCore/System.h>
diff --git a/Userland/Utilities/test-fuzz.cpp b/Userland/Utilities/test-fuzz.cpp
index a4fb3e273bf..bf0d6b86222 100644
--- a/Userland/Utilities/test-fuzz.cpp
+++ b/Userland/Utilities/test-fuzz.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>
 #include <LibMain/Main.h>
diff --git a/Userland/Utilities/userdel.cpp b/Userland/Utilities/userdel.cpp
index 6e9c07f8276..8efd12892ca 100644
--- a/Userland/Utilities/userdel.cpp
+++ b/Userland/Utilities/userdel.cpp
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/DeprecatedString.h>
 #include <LibCore/Account.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DeprecatedFile.h>