Steps to reproduce:
- open any youtube video
- press f to go into fullscreen
this happens at the bottom of the youtube video:
(after some testing, it only happens when you click on a video and then go into fullscreen, not if you're already in fullscreen on youtube and then select a video, you can exit fullscreen on this video and re-enter for the same bug)
Version 0.99.120.1-beta (WebKit 614.1.20) 12.6, M1 Max 2021