do you re-watch enough YT videos that you need to archive your subscriptions?
Well, if I can get it working, I would much rather be watching via Jellyfin on my TV and not whatever crappy, privacy-invading, ad-shoving Youtube app I'm forced to use.
But realistically, I want to keep some how-to / maintenance videos archived, because I've lost track of how many times they went “private” and can't be accessed anymore. Some really niche product use/maintenance videos tend to disappear.
I have no real interest in data hoarding vlogs or other crap. Just informational stuff.