Other than Libretube? Available on fdroid? I want proxied interaction with google apis.
[Edit] After a bit of hunting, I found an app https://www.f-droid.org/packages/app.suhasdissa.vibeyou/ the recommendation service isn’t there, but gets the job done.
Not sure if this is exactly what you are looking for, but NewPipe will play anything from YouTube without ads. Play on background for audio only.