screen sharing capabilities over WebRTC is not working

screen sharing only works as long as some portion of the application's desktop window is viewable. If it's completely obscured by other application windows, it seems to "freeze" in that the last frame sent is all other people can see.

This can be reproduced with Qt's Nano Browser, First it is  hard time getting screen sharing working at all in nanobrowser on mac once every permission etc is set when it works it only works while the nanobrowser  window is visible.

Start Nano browser and go to https://meet.google.com/landing and start a meeting and then from other machine join the meeting. 

If Nano Browser is totally hidden under some other application it freezes.

This was working earlier with Qt6.2