Revanced has a patched yt music app. No ads, background play, and I use the super mix playlist a lot.

Fo those that prefer Spotify, check out spotube. Available for phone and Google TV.

On my TCL Google TV I use Smart Tube. It has sponsor block and you can filter out shorts.

Being it calls itself First Store, I’ll infer that this is a demo. Not unlike all the other demos I run across saying first chapter.

There is a website I get in my Google feeds that always advertised steam free games and they turn out to be mostly demos.