All you young’ins don’t know about hackertyper.net

Is there any eli5 guides to things like f-Droid or the other platforms(?) (it used to be called ‘rooting’, don’t know what it is now) to be able to install LibreTube? Following the faq link from github, I see 3 download options, one I recognize as f-Droid, and 2 others.

I realize this should be “android 101”, but my ability to problem solve stuff like this is slipping away from me. (protect your brain, kids!).

Loved the phone. Hated the camera.