https://forum.qt.io/topic/69199/qt3dwindow-inside-windowcontainer-crash-when-deleted
Qt3DWindow inside WindowContainer crash when deleted | Qt Forum
Aug 8, 2016 - Trying to use Qt3D inside a dialog so embedding the Qt3DWindow in a widget and inserting the widget in a layout of the dialog, but the program crash randomly...
insidecrashdeletedqtforum
https://doc.qt.io/QT-6/qml-qtquick-windowcontainer.html
WindowContainer QML Type | Qt Quick | Qt 6.11.1
Allows embedding arbitrary QWindows into a Qt Quick scene.
qt quickqmltype