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Tubular fork of newpipe works on AndroidTV, don't know if newpipe itself does but last time I checked it didn't. So I use it on both tv and phone.
Is its UI adapted to Android TV? Or does it look like on mobile?
Sadly it's not, and navigating around it takes a little bit of getting used to (trying to close a video for example is a somewhat counter intuitive). But I'll take it over adds in youtube. That being said, I used it sparsely, as I don't have much I want to watch there except play the odd song or maybe one or two other videos a week.
For android TV you should use smarttubenext, same as tubular, but with a tv interface.
if you have an apple tv and an iphone, use youtube in the browser with adguard and airplay. No ads, no bs
you could also try this for iPhone: https://github.com/arichornloverALT/uYouEnhanced it has sponsorblock included too
Or get a Chromecast and smarttube...
