Screen density changes not handled with Samsung DEX

QWidgets do not recognize the Screen Density changes when using Samsung Dex with

com.samsung.android.keepalive.densitycom.samsung.android.multidisplay.keep_process_alive

1. Compile and launch the annexed project on a Samsung S8 (or later).
2. Connect a screen, let Samsung Dex launch.
3. On the new screen, select currently running apps (||| button) and select this app.

In the annexed images the current result and the expected one.

I think something missing somewhere, in order to emit QWindow::screenChanged.

In the annexed project I already put the code to catch ConfigChanges and let MainWindow know there is something to do... But I think this should be handled on a much deeper level. (See MainWindow.cpp, rows 87-97.