diff --git a/launcher/Application.cpp b/launcher/Application.cpp
index 38613280..2da8ac56 100644
--- a/launcher/Application.cpp
+++ b/launcher/Application.cpp
@@ -1137,15 +1137,6 @@ std::vector<ITheme *> Application::getValidApplicationThemes()
     return ret;
 }
 
-bool Application::isFlatpak()
-{
-    #ifdef Q_OS_LINUX
-    return QFile::exists("/.flatpak-info");
-    #else
-    return false;
-    #endif
-}
-
 void Application::setApplicationTheme(const QString& name, bool initial)
 {
     auto systemPalette = qApp->palette();
diff --git a/launcher/Application.h b/launcher/Application.h
index c453cc28..8fa0ab10 100644
--- a/launcher/Application.h
+++ b/launcher/Application.h
@@ -116,8 +116,6 @@ public:
 
     QIcon getThemedIcon(const QString& name);
 
-    bool isFlatpak();
-
     void setIconTheme(const QString& name);
 
     std::vector<ITheme *> getValidApplicationThemes();
diff --git a/launcher/DesktopServices.cpp b/launcher/DesktopServices.cpp
index c29cbe7d..302eaf96 100644
--- a/launcher/DesktopServices.cpp
+++ b/launcher/DesktopServices.cpp
@@ -119,7 +119,7 @@ bool openDirectory(const QString &path, bool ensureExists)
         return QDesktopServices::openUrl(QUrl::fromLocalFile(dir.absolutePath()));
     };
 #if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
-    if(!APPLICATION->isFlatpak())
+    if(!isFlatpak())
     {
         return IndirectOpen(f);
     }
@@ -140,7 +140,7 @@ bool openFile(const QString &path)
         return QDesktopServices::openUrl(QUrl::fromLocalFile(path));
     };
 #if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
-    if(!APPLICATION->isFlatpak())
+    if(!isFlatpak())
     {
         return IndirectOpen(f);
     }
@@ -158,7 +158,7 @@ bool openFile(const QString &application, const QString &path, const QString &wo
     qDebug() << "Opening file" << path << "using" << application;
 #if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
     // FIXME: the pid here is fake. So if something depends on it, it will likely misbehave
-    if(!APPLICATION->isFlatpak())
+    if(!isFlatpak())
     {
         return IndirectOpen([&]()
         {
@@ -178,7 +178,7 @@ bool run(const QString &application, const QStringList &args, const QString &wor
 {
     qDebug() << "Running" << application << "with args" << args.join(' ');
 #if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
-    if(!APPLICATION->isFlatpak())
+    if(!isFlatpak())
     {
     // FIXME: the pid here is fake. So if something depends on it, it will likely misbehave
     return IndirectOpen([&]()
@@ -203,7 +203,7 @@ bool openUrl(const QUrl &url)
         return QDesktopServices::openUrl(url);
     };
 #if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
-    if(!APPLICATION->isFlatpak())
+    if(!isFlatpak())
     {
         return IndirectOpen(f);
     }
@@ -216,4 +216,13 @@ bool openUrl(const QUrl &url)
 #endif
 }
 
+bool isFlatpak()
+{
+#ifdef Q_OS_LINUX
+    return QFile::exists("/.flatpak-info");
+#else
+    return false;
+#endif
+}
+
 }
diff --git a/launcher/DesktopServices.h b/launcher/DesktopServices.h
index 1c081da4..21c9cae0 100644
--- a/launcher/DesktopServices.h
+++ b/launcher/DesktopServices.h
@@ -33,4 +33,6 @@ namespace DesktopServices
      * Open the URL, most likely in a browser. Maybe.
      */
     bool openUrl(const QUrl &url);
+
+    bool isFlatpak();
 }
diff --git a/launcher/FileSystem.cpp b/launcher/FileSystem.cpp
index 76cfccb0..aaa75e6f 100644
--- a/launcher/FileSystem.cpp
+++ b/launcher/FileSystem.cpp
@@ -44,6 +44,7 @@
 #include <QStandardPaths>
 #include <QTextStream>
 #include <QUrl>
+#include "DesktopServices.h"
 
 #if defined Q_OS_WIN32
 #include <objbase.h>
@@ -228,6 +229,9 @@ bool trash(QString path, QString *pathInTrash = nullptr)
 #if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
     return false;
 #else
+    // FIXME: Figure out trash in Flatpak. Qt seemingly doesn't use the Trash portal
+    if (DesktopServices::isFlatpak())
+        return false;
     return QFile::moveToTrash(path, pathInTrash);
 #endif
 }
diff --git a/launcher/ui/MainWindow.cpp b/launcher/ui/MainWindow.cpp
index 84a78941..eda234df 100644
--- a/launcher/ui/MainWindow.cpp
+++ b/launcher/ui/MainWindow.cpp
@@ -335,11 +335,10 @@ public:
         all_actions.append(&actionSettings);
 
         actionUndoTrashInstance = TranslatedAction(MainWindow);
-        connect(actionUndoTrashInstance, SIGNAL(triggered(bool)), MainWindow, SLOT(undoTrashInstance()));
         actionUndoTrashInstance->setObjectName(QStringLiteral("actionUndoTrashInstance"));
         actionUndoTrashInstance.setTextId(QT_TRANSLATE_NOOP("MainWindow", "&Undo Last Instance Deletion"));
         actionUndoTrashInstance->setEnabled(APPLICATION->instances()->trashedSomething());
-        actionUndoTrashInstance->setShortcut(QKeySequence("Ctrl+Z"));
+        actionUndoTrashInstance->setShortcut(QKeySequence::Undo);
         all_actions.append(&actionUndoTrashInstance);
 
         actionClearMetadata = TranslatedAction(MainWindow);
@@ -1023,6 +1022,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new MainWindow
         }
     }
 
+    connect(ui->actionUndoTrashInstance.operator->(), &QAction::triggered, this, &MainWindow::undoTrashInstance);
+
     setSelectedInstanceById(APPLICATION->settings()->get("SelectedInstance").toString());
 
     // removing this looks stupid
@@ -1134,11 +1135,6 @@ void MainWindow::showInstanceContextMenu(const QPoint &pos)
             connect(actionDeleteGroup, SIGNAL(triggered(bool)), SLOT(deleteGroup()));
             actions.append(actionDeleteGroup);
         }
-
-        QAction *actionUndoTrashInstance = new QAction("Undo last trash instance", this);
-        connect(actionUndoTrashInstance, SIGNAL(triggered(bool)), SLOT(undoTrashInstance()));
-        actionUndoTrashInstance->setEnabled(APPLICATION->instances()->trashedSomething());
-        actions.append(actionUndoTrashInstance);
     }
     QMenu myMenu;
     myMenu.addActions(actions);
@@ -1834,6 +1830,7 @@ void MainWindow::deleteGroup()
 void MainWindow::undoTrashInstance()
 {
     APPLICATION->instances()->undoTrashInstance();
+    ui->actionUndoTrashInstance->setEnabled(APPLICATION->instances()->trashedSomething());
 }
 
 void MainWindow::on_actionViewInstanceFolder_triggered()
@@ -1940,6 +1937,7 @@ void MainWindow::on_actionDeleteInstance_triggered()
 
     auto id = m_selectedInstance->id();
     if (APPLICATION->instances()->trashInstance(id)) {
+        ui->actionUndoTrashInstance->setEnabled(APPLICATION->instances()->trashedSomething());
         return;
     }
     
diff --git a/launcher/ui/pages/global/LauncherPage.cpp b/launcher/ui/pages/global/LauncherPage.cpp
index 536ab22e..4ae7509c 100644
--- a/launcher/ui/pages/global/LauncherPage.cpp
+++ b/launcher/ui/pages/global/LauncherPage.cpp
@@ -49,6 +49,7 @@
 #include <FileSystem.h>
 #include "Application.h"
 #include "BuildConfig.h"
+#include "DesktopServices.h"
 #include "ui/themes/ITheme.h"
 
 #include <QApplication>
@@ -143,7 +144,7 @@ void LauncherPage::on_instDirBrowseBtn_clicked()
                 ui->instDirTextBox->setText(cooked_dir);
             }
         }
-        else if(APPLICATION->isFlatpak() && raw_dir.startsWith("/run/user"))
+        else if(DesktopServices::isFlatpak() && raw_dir.startsWith("/run/user"))
         {
             QMessageBox warning;
             warning.setText(tr("You're trying to specify an instance folder "