A big reason I use MPV is because of anime. I forget exactly what the reason was back in the day, but I can remember MPV being better at playing certain formats, and fan subs of anime are early adopters of new codecs. In addition, there is a very healthy ecosystem of plugins related to language learning, which again ties back to anime.
This is something I’ve wanted for a very long time! It’s such a shame that this thread is full of people discussing whether or not a global menu is even a good thing. On Debian I have literally not been able to find a single browser that respects the global menu. I’m going to try everything in this thread, and hope something finally works!