Trying to use it with NeoChat built against Qt 6 yields the following error: file:///home/nate/kde/usr6/lib64/qml/org/kde/kirigamiaddons/labs/components/VideoMaximizeDelegate.qml:63:30: Invalid alias target location: autoLoad This is because the QtMultiMedia VIdeo object lost its autoLoad: and autoPlay: properties in Qt 6. flushMode: is gone too.
Fixed a while ago.