I needed to clean up my Google account but couldn’t remove all my YouTube subscriptions because Google doesn’t allow it, SO removed YOU GOOGLE. I searched online for a solution but only found broken scripts. So, I made my own working script to unsubscribe from all channels efficiently. Sharing it here in case anyone else is in the same boat. Hope it helps!
I just use RSS feeds to follow YT-channels. It’s doesn’t seem any less convenient than a YT account.
This is the way. Not to mention being able to sort them into categories.