diff --git a/shell/shellcorona.h b/shell/shellcorona.h
--- a/shell/shellcorona.h
+++ b/shell/shellcorona.h
@@ -29,6 +29,7 @@
 #include <QTimer>
 #include <QDBusVariant>
 #include <QDBusContext>
+#include <QElapsedTimer>
 
 #include <KPackage/Package>
 
@@ -246,6 +247,7 @@
     QTimer m_waitingPanelsTimer;
     QTimer m_appConfigSyncTimer;
     QTimer m_reconsiderOutputsTimer;
+    QElapsedTimer m_startupElapsedtimer;
 
     KWayland::Client::PlasmaShell *m_waylandPlasmaShell;
 };
diff --git a/shell/shellcorona.cpp b/shell/shellcorona.cpp
--- a/shell/shellcorona.cpp
+++ b/shell/shellcorona.cpp
@@ -94,6 +94,7 @@
       m_interactiveConsole(nullptr),
       m_waylandPlasmaShell(nullptr)
 {
+    m_startupElapsedtimer.restart();
     setupWaylandIntegration();
     qmlRegisterUncreatableType<DesktopView>("org.kde.plasma.shell", 2, 0, "Desktop", QStringLiteral("It is not possible to create objects of type Desktop"));
     qmlRegisterUncreatableType<PanelView>("org.kde.plasma.shell", 2, 0, "Panel", QStringLiteral("It is not possible to create objects of type Panel"));
@@ -1194,7 +1195,9 @@
         m_panelViews[cont] = panel;
         panel->setContainment(cont);
         cont->reactToScreenChange();
-
+        connect(panel, &PanelView::visibleChanged, [this](){
+            qCDebug(PLASMASHELL) << "Panel appeared, time elapsed since startup:" << m_startupElapsedtimer.elapsed();
+        });
         connect(cont, &QObject::destroyed, this, &ShellCorona::panelContainmentDestroyed);
     }
     m_waitingPanels = stillWaitingPanels;