In case someone does want to look into this, an additional issue I'm running into is just from using pushWindow and playing an AVPlayer in the pushed window in onAppear. The audio session gets interrupted about a second in, with a reason of default and no interruption ended notification

I just noticed this reply since I wasn't receiving notifications on this thread. I had submitted feedback with id FB14731372. Unfortunately it was closed as "unable to diagnose" which is highly disappointing and discourages me from going through the effort of leaving future feedback.