operator+/- is disabled for QFlags in qt6

containments/desktop/plugins/folder/foldermodel.cpp

@@ -1859,7 +1859,7 @@ void FolderModel::openContextMenu(QQuickItem *visualParent, Qt::KeyboardModifier
         if (KPropertiesDialog::canDisplay(items)) {
             menu->addSeparator();
             QAction *act = new QAction(QIcon::fromTheme(QStringLiteral("document-properties")), i18n("&Properties"), menu);
-            act->setShortcuts({Qt::ALT + Qt::Key_Return, Qt::ALT + Qt::Key_Enter});
+            act->setShortcuts({Qt::ALT | Qt::Key_Return, Qt::ALT | Qt::Key_Enter});
             QObject::connect(act, &QAction::triggered, this, &FolderModel::openPropertiesDialog);
             menu->addAction(act);
         }

imports/activitymanager/switcherbackend.cpp

@@ -255,12 +255,12 @@ SwitcherBackend::SwitcherBackend(QObject *parent)
 {
     registerShortcut(ACTION_NAME_NEXT_ACTIVITY,
                      i18n("Walk through activities"),
-                     Qt::META + Qt::Key_Tab,
+                     Qt::META | Qt::Key_Tab,
                      &SwitcherBackend::keybdSwitchToNextActivity);
 
     registerShortcut(ACTION_NAME_PREVIOUS_ACTIVITY,
                      i18n("Walk through activities (Reverse)"),
-                     Qt::META + Qt::SHIFT + Qt::Key_Tab,
+                     Qt::META | Qt::SHIFT | Qt::Key_Tab,
                      &SwitcherBackend::keybdSwitchToPreviousActivity);
 
     connect(this, &SwitcherBackend::shouldShowSwitcherChanged,

kcms/activities/SwitchingTab.cpp

@@ -68,10 +68,10 @@ SwitchingTab::SwitchingTab(QWidget *parent)
 
     d->createAction(QStringLiteral("next activity"),
                     i18nc("@action", "Walk through activities"),
-                    { Qt::META + Qt::Key_Tab });
+                    { Qt::META | Qt::Key_Tab });
     d->createAction(QStringLiteral("previous activity"),
                     i18nc("@action", "Walk through activities (Reverse)"),
-                    { Qt::META + Qt::SHIFT + Qt::Key_Tab } );
+                    { Qt::META | Qt::SHIFT | Qt::Key_Tab } );
 
     d->scActivities->setActionTypes(KShortcutsEditor::GlobalAction);
     d->scActivities->addCollection(d->mainActionCollection);