[Diris]

Powertube [0] is a great app for this

[0] https://github.com/razar-dev/PowerTube

[77pt77]

Thank you. I've been looking for anything like this for ages.

Apparently another alternative is

https://github.com/yausername/dvd

And this one is on fdroid.

DVD seems to work on more sites with more format options. The inference is super clunky though.