Yeah, good luck with that. I had the same issue and it replicated even in other browsers. I ended up spending more than an hour with Apple and they claimed that none of their service techs had issues. That said, this has been an ongoing issue reported by Users for years now, as you can see in places like links below:
That said, I am seeing something now I’ve never noticed before.
@michal could you check out https://github.com/youtube/youtube-ios-player-helper/issues/456 and also experiment yourself with captions on YouTube with an iPhone? Pointing out the Github because if it is the idea of full-width vs partial-width, would there be anything in Brave programming to account for that?
Oh damn, I thought this would be a smaller issue than it is. Sounds to me like YouTube wants to keep its app „privileged“. Very annoying. Still, thanks a lot. Btw I updated Brave and unfortunately nothing changed.