I’ve been using Invidious and NewPipe to watch YouTube for a long time. I don’t use an account with either of these. However, I’m wanting to get recommendations based on what I watch and my subscriptions. LibreTube looked promising but it no longer works. When I try to watch videos it won’t play. YouTube Vanced is dead. Not sure if another viable solution exists.
LG uses WebOS, not Android TV. Get an external Android TV system like an Nvidia Shield.