I've been using Freetube for a while now and i cannot recommend it enough. It doesn't push you any content aside from the creators you've subscribed to, It looks clean and has great theme customization, its ad-free and of course its FOSS.

Like invidious, Freetube won't use your data to recommend you an infinite stream of curated content for you to consume. I've found myself watching a video and just being satisfied there, with one video. I couldn't handle that before. Youtube's clever algorithm would never let me watch just one video if I had the time for 2 or 3 or 20. And having a subscriber only feed gave me total control over how much reactionary content I see. Its a complete 180 from the standard youtube experience.