net user
pipepipe and rimusic is what i use. youtube in the browser is fine too, if you disable that “open in the youtube app” popup (firefox for android with ublock origin addon is what i use, although i have experienced some regressions with the ad-blocker not working after youtube updates something, but ublock is usually on top of it and fixes stuff quickly).
you can install emudeck on any regular linux distro
my personal wishlist would just be a proper homeserver and the typical home theatre stuff like a nice big screen, speakers, etc.
in a broader sense of how the ecosystem would be improved, i’d say more open source projects and solidarity in general. currently the worst, yet most common sort of piracy is people searching “watch blank online free” and clicking the shady websites full of junk ads, popups and malware just to see a shitty heavily compressed buffering version with baked in subtitles and stuff. piracy should be for the people, not for profit; lowering the amount of technical hoops you need to jump through to get to the good accessible media by having simple, free, and open tools would help a lot.
also, the sponsorblock addon works on mobile and there is an addon that allows videos to play in the background if you need that. i haven’t tested this with youtube music in the browser but i wouldn’t be surprised if it also worked.