--- ./src/MainWindow.h.orig	2021-08-04 16:48:59.000000000 -0500
+++ ./src/MainWindow.h	2021-08-19 19:24:14.000000000 -0500
@@ -200,6 +200,7 @@
     bool _menuBarInitialVisibility;
     bool _menuBarInitialVisibilityApplied;
     bool _blurEnabled = false;
+    bool _isSavedUiState = false;
 };
 }
 
--- ./src/MainWindow.cpp.orig	2021-08-04 16:48:59.000000000 -0500
+++ ./src/MainWindow.cpp	2021-08-19 19:24:14.000000000 -0500
@@ -11,12 +11,12 @@
 #include <QMouseEvent>
 #include <QMenu>
 #include <QMenuBar>
-#include <QStatusBar>
 
 // KDE
 #include <KAcceleratorManager>
 #include <KActionCollection>
 #include <KActionMenu>
+#include <KCrash>
 #include <KIconUtils>
 #include <KShortcutsDialog>
 #include <KLocalizedString>
@@ -56,6 +56,8 @@
 #include "terminalDisplay/TerminalDisplay.h"
 #include "widgets/ViewContainer.h"
 
+#include <konsoledebug.h>
+
 using namespace Konsole;
 
 MainWindow::MainWindow() :
@@ -68,13 +70,22 @@
     _menuBarInitialVisibility(true),
     _menuBarInitialVisibilityApplied(false)
 {
-    if (!KonsoleSettings::saveGeometryOnExit()) {
+    KSharedConfigPtr konsoleConfig = KSharedConfig::openConfig(QStringLiteral("konsolerc"));
+    KConfigGroup cg = konsoleConfig->group(QStringLiteral("MainWindow"));
+    const bool isGroup = cg.exists();
+    if (isGroup) {
+        const QString stateConfig = cg.readEntry(QStringLiteral("State"));
+
+        // If "stateConfig" is empty then this is the very first run,
+        // i.e. no konsolerc file in $HOME
+        _isSavedUiState = !stateConfig.isEmpty();
+    }
+
+    if (isGroup && !KonsoleSettings::saveGeometryOnExit()) {
         // If we are not using the global Konsole save geometry on exit,
         // remove all geometry data from [MainWindow] in Konsolerc, so KWin will
         // manage it directly
-        KSharedConfigPtr konsoleConfig = KSharedConfig::openConfig(QStringLiteral("konsolerc"));
-        KConfigGroup group = konsoleConfig->group("MainWindow");
-        QMap<QString, QString> configEntries = group.entryMap();
+        QMap<QString, QString> configEntries = cg.entryMap();
         QMapIterator<QString, QString> i(configEntries);
 
         while (i.hasNext()) {
@@ -91,7 +102,7 @@
                 || i.key().contains(QLatin1String(" YPosition"))
 #endif
             ) {
-                group.deleteEntry(i.key());
+                cg.deleteEntry(i.key());
             }
         }
     }
@@ -103,7 +114,7 @@
 
     // create view manager
     _viewManager = new ViewManager(this, actionCollection());
-    connect(_viewManager, &Konsole::ViewManager::empty, this, &Konsole::MainWindow::close);
+    connect(_viewManager, &Konsole::ViewManager::empty, this, &QWidget::close);
     connect(_viewManager, &Konsole::ViewManager::activeViewChanged, this,
             &Konsole::MainWindow::activeViewChanged);
     connect(_viewManager, &Konsole::ViewManager::unplugController, this,
@@ -129,8 +140,10 @@
     // in terminal applications
     KAcceleratorManager::setNoAccel(menuBar());
 
-    // create menus
-    createGUI();
+    constexpr KXmlGuiWindow::StandardWindowOptions guiOpts = ToolBar | Keys | Save | Create;
+    const QString xmlFile = componentName() + QLatin1String("ui.rc"); // Typically "konsoleui.rc"
+    // The "Create" flag will make it call createGUI()
+    setupGUI(guiOpts, xmlFile);
 
     // remember the original menu accelerators for later use
     rememberMenuAccelerators();
@@ -146,11 +159,7 @@
     connect(KonsoleSettings::self(), &Konsole::KonsoleSettings::configChanged, this,
             &Konsole::MainWindow::applyKonsoleSettings);
 
-
-    // KXMLGui is making the status bar always visible, we need to fix in a proper way.
-    if (statusBar() != nullptr) {
-        statusBar()->installEventFilter(this);
-    }
+    KCrash::initialize();
 }
 
 void MainWindow::updateUseTransparency()
@@ -889,7 +898,15 @@
 #if KWINDOWSYSTEM_VERSION < QT_VERSION_CHECK(5,82,0)
         KWindowEffects::enableBlurBehind(winId(), blur);
 #else
-        KWindowEffects::enableBlurBehind(windowHandle(), blur);
+        // Set the WA_NativeWindow attribute to force the creation of the QWindow.
+        // Without this QWidget::windowHandle() returns 0.
+        // See https://phabricator.kde.org/D23108
+        setAttribute(Qt::WA_NativeWindow);
+        if (QWindow *window = windowHandle()) {
+            KWindowEffects::enableBlurBehind(window, blur);
+        } else {
+            qCWarning(KonsoleDebug) << "Blur effect couldn't be enabled.";
+        }
 #endif
     }
 }
@@ -935,9 +952,14 @@
         menuBar()->setVisible(_menuBarInitialVisibility);
         _toggleMenuBarAction->setChecked(_menuBarInitialVisibility);
         _menuBarInitialVisibilityApplied = true;
-        if (!KonsoleSettings::saveGeometryOnExit()) {
-            resize(sizeHint());
-        }
+    }
+
+    if (!_isSavedUiState || !KonsoleSettings::saveGeometryOnExit()) {
+        // Delay resizing to here, so that the other parts of the UI
+        // (ViewManager, TabbedViewContainer, TerminalDisplay ... etc)
+        // have been created and TabbedViewContainer::sizeHint() returns
+        // a usuable size.
+        resize(sizeHint());
     }
 
     // Call parent method
@@ -971,13 +993,7 @@
             default: ;
         }
     }
-    if (qobject_cast<QStatusBar*>(obj) != nullptr) {
-        switch(event->type()) {
-            case QEvent::Show: statusBar()->hide(); break;
-            default: return true;
-        }
-        return true;
-    }
+
     return KXmlGuiWindow::eventFilter(obj, event);
 }