It will work just like the notch. By default, apps don't write to that area. When playing videos that area is blacked out. You have to manually zoom in on a video to cause the video to overlap that area. That is your choice.God...i wonder in full screen videos or anything...the pixels above the pill shape will show the content or it will be black?
imagine looking at a video and you are getting some fragment from the video in that little space, so hilarious and useless...