On iOS after leaving call and putting app to background the PiP mode is still on.

[asaarnak]

I awaited call.leave() and after that navigated to previous screen so all the StreamCallContainer was disposed, then if i put my app to background in a second or two the PiP window with black screen is opened.

[asaarnak]

I disabled the PiP mode manually with isLeaving boolean before calling call.leave().
It's alot better now, but still there is a small chance to get the black screen PiP mode if you put app to background right after leaving.