Fullscreen youtube video gets cropped

On Android, one Plus 6, (most recent version of brave to date?)
When i go to fullscreen on youtube videos, it stretches the video beyond the phone size, cropping the bottom of videos.

It’s consistent now. Think it happened when the video was detached on top of other apps accidentally (don’t know how that feature works)

Once I fixed it by detaching the video again but it came back - if im not mistaken. But i dont know how to reproduce the fix. The issue is now constant.

Help!
Thank you

This is an upstream issue. Happens on Chrome as well. We will have to see if this will be fixed upstream or not.