Newpipe doesn’t let you leave comments (which was the reason I personally switched to it – I used to spend too much time commenting like half of the stuff I watched, and I watched a lot) or login with a Google account;
newpipe doesn’t have sponsorblock (which is currently solved by using tubular; note that it may or may not become abandoned like previous attempts by other ppl);
newpipe lets you download video/audio (although, admittedly, having yt-dlp in termux is still more than handy for bulk downloads);
newpipe has better (imo) background playback: you can either play or enqueue both videos and playlists (note: I haven’t used yt app for a while, so mb it also can do similar stuff)