I know a lot of people hate on the recommendations homepage on YouTube, but I discover a lot of content I like watching there. However, I can't watch all of it and what to save what I see there and otherwise find and search for in a playlist, but the watch later playlist is not user friendly. Does Freetube improve playlist management too? That would be a big plus.

I never used the playlist on FreeTube, but just gave it a look and the use seems straightforward to me. It probably depends a lot on user needs, anyway operations look lightning fast compared to the "original".