diff --git a/.github/workflows/windows_build_qt.yml b/.github/workflows/windows_build_qt.yml
index d34ebbad24..a2282145a9 100644
--- a/.github/workflows/windows_build_qt.yml
+++ b/.github/workflows/windows_build_qt.yml
@@ -32,7 +32,7 @@ on:
       qt_binary_url:
         required: false
         type: string
-        default: https://github.com/PCSX2/pcsx2-windows-dependencies/releases/download/2022-11-20/qt-6.4.0-x64.7z
+        default: https://github.com/PCSX2/pcsx2-windows-dependencies/releases/download/2023-04-25/qt-6.5.0-x64.7z
       qt_dir:
         required: false
         type: string
diff --git a/cmake/SearchForStuff.cmake b/cmake/SearchForStuff.cmake
index f4d88a186b..260bc6d4a8 100644
--- a/cmake/SearchForStuff.cmake
+++ b/cmake/SearchForStuff.cmake
@@ -134,7 +134,7 @@ find_optional_system_library(libzip 3rdparty/libzip 1.8.0)
 if(QT_BUILD)
 	# Default to bundled Qt6 for Windows.
 	if(WIN32 AND NOT DEFINED Qt6_DIR)
-		set(Qt6_DIR ${CMAKE_SOURCE_DIR}/3rdparty/qt/6.4.0/msvc2022_64/lib/cmake/Qt6)
+		set(Qt6_DIR ${CMAKE_SOURCE_DIR}/3rdparty/qt/6.5.0/msvc2022_64/lib/cmake/Qt6)
 	endif()
 
 	# Find the Qt components that we need.
diff --git a/common/vsprops/QtCompile.props b/common/vsprops/QtCompile.props
index dea9058f8f..082668d70f 100644
--- a/common/vsprops/QtCompile.props
+++ b/common/vsprops/QtCompile.props
@@ -2,11 +2,11 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="UserMacros">
     <BinaryOutputDir>$(SolutionDir)bin\</BinaryOutputDir>
-    <PCSX2QTDIRDefault Condition="'$(Platform)'=='x64'">$(SolutionDir)3rdparty\qt\6.4.0\msvc2022_64\</PCSX2QTDIRDefault>
-    <PCSX2QTDIRDefault Condition="'$(Platform)'=='ARM64'">$(SolutionDir)3rdparty\qt\6.4.0\msvc2022_arm64\</PCSX2QTDIRDefault>
+    <PCSX2QTDIRDefault Condition="'$(Platform)'=='x64'">$(SolutionDir)3rdparty\qt\6.5.0\msvc2022_64\</PCSX2QTDIRDefault>
+    <PCSX2QTDIRDefault Condition="'$(Platform)'=='ARM64'">$(SolutionDir)3rdparty\qt\6.5.0\msvc2022_arm64\</PCSX2QTDIRDefault>
     <PCSX2QTDIR Condition="Exists('$(PCSX2QTDIRDefault)') And ('$(PCSX2QTDIR)'=='' Or !Exists('$(PCSX2QTDIR)'))">$(PCSX2QTDIRDefault)</PCSX2QTDIR>
     <PCSX2QTDIR Condition="Exists('$(PCSX2QTDIR)') And !HasTrailingSlash('$(PCSX2QTDIR)')">$(PCSX2QTDIR)\</PCSX2QTDIR>
-    <PCSX2QTDIRHost>$(SolutionDir)3rdparty\qt\6.4.0\msvc2022_64\</PCSX2QTDIRHost>
+    <PCSX2QTDIRHost>$(SolutionDir)3rdparty\qt\6.5.0\msvc2022_64\</PCSX2QTDIRHost>
     <QtDirValid>false</QtDirValid>
     <QtDirValid Condition="Exists('$(PCSX2QTDIR)')">true</QtDirValid>
     <QtIncludeDir>$(PCSX2QTDIR)include\</QtIncludeDir>
diff --git a/pcsx2-qt/GameList/GameListWidget.cpp b/pcsx2-qt/GameList/GameListWidget.cpp
index 051a2af4b9..0975fa1d88 100644
--- a/pcsx2-qt/GameList/GameListWidget.cpp
+++ b/pcsx2-qt/GameList/GameListWidget.cpp
@@ -181,7 +181,7 @@ void GameListWidget::initialize()
 	m_list_view = new GameListGridListView(m_ui.stack);
 	m_list_view->setModel(m_sort_model);
 	m_list_view->setModelColumn(GameListModel::Column_Cover);
-	m_list_view->setSelectionMode(QAbstractItemView::ExtendedSelection);
+	m_list_view->setSelectionMode(QAbstractItemView::SingleSelection);
 	m_list_view->setViewMode(QListView::IconMode);
 	m_list_view->setResizeMode(QListView::Adjust);
 	m_list_view->setUniformItemSizes(true);
diff --git a/pcsx2-qt/MainWindow.cpp b/pcsx2-qt/MainWindow.cpp
index a1a3f41d71..0a2a8e4e46 100644
--- a/pcsx2-qt/MainWindow.cpp
+++ b/pcsx2-qt/MainWindow.cpp
@@ -95,7 +95,6 @@ const char* MainWindow::DEFAULT_THEME_NAME = "darkfusion";
 
 MainWindow* g_main_window = nullptr;
 static QString s_unthemed_style_name;
-static QPalette s_unthemed_palette;
 static bool s_unthemed_style_name_set;
 
 #if defined(_WIN32) || defined(__APPLE__)
@@ -509,7 +508,6 @@ void MainWindow::updateApplicationTheme()
 	{
 		s_unthemed_style_name_set = true;
 		s_unthemed_style_name = QApplication::style()->objectName();
-		s_unthemed_palette = QApplication::style()->standardPalette();
 	}
 
 	setStyleFromSettings();
@@ -522,9 +520,11 @@ void MainWindow::setStyleFromSettings()
 
 	if (theme == "fusion")
 	{
-		qApp->setPalette(s_unthemed_palette);
-		qApp->setStyleSheet(QString());
+		// setPalette() shouldn't be necessary, as the documentation claims that setStyle() resets the palette, but it
+		// is here, to work around a bug in 6.4.x and 6.5.x where the palette doesn't restore after changing themes.
+		qApp->setPalette(QPalette());
 		qApp->setStyle(QStyleFactory::create("Fusion"));
+		qApp->setStyleSheet(QString());
 	}
 	else if (theme == "darkfusion")
 	{
@@ -938,9 +938,11 @@ void MainWindow::setStyleFromSettings()
 	}
 	else
 	{
-		qApp->setPalette(s_unthemed_palette);
-		qApp->setStyleSheet(QString());
+		// setPalette() shouldn't be necessary, as the documentation claims that setStyle() resets the palette, but it
+		// is here, to work around a bug in 6.4.x and 6.5.x where the palette doesn't restore after changing themes.
+		qApp->setPalette(QPalette());
 		qApp->setStyle(s_unthemed_style_name);
+		qApp->setStyleSheet(QString());
 	}
 }
 
diff --git a/pcsx2-qt/Settings/InterfaceSettingsWidget.cpp b/pcsx2-qt/Settings/InterfaceSettingsWidget.cpp
index 91f6c59014..b4e5213241 100644
--- a/pcsx2-qt/Settings/InterfaceSettingsWidget.cpp
+++ b/pcsx2-qt/Settings/InterfaceSettingsWidget.cpp
@@ -24,7 +24,7 @@
 static const char* THEME_NAMES[] = {
 	QT_TRANSLATE_NOOP("InterfaceSettingsWidget", "Native"),
 	//: Ignore what Crowdin says in this string about "[Light]/[Dark]" being untouchable here, these are not variables in this case and must be translated.
-	QT_TRANSLATE_NOOP("InterfaceSettingsWidget", "Fusion [Light]"),
+	QT_TRANSLATE_NOOP("InterfaceSettingsWidget", "Fusion [Light/Dark]"),
 	//: Ignore what Crowdin says in this string about "[Light]/[Dark]" being untouchable here, these are not variables in this case and must be translated.
 	QT_TRANSLATE_NOOP("InterfaceSettingsWidget", "Dark Fusion (Gray) [Dark]"),
 	//: Ignore what Crowdin says in this string about "[Light]/[Dark]" being untouchable here, these are not variables in this case and must be translated.