I'm sure I've reported this in the past, but can't seem to find anything from a search. When using the iOS client on my iPhone 12, and playing a trailer from a film title page, a Youtube clip start to play but only fills a small part in the middle of the screen.  When you rotate the phone the expected result is a larger, full-screen playback but it doesn't get much bigger and fills less than half of the screen. I would be nice to get this fixed. Thanks.