My anecdoral experience, although I was probably exagerrating a bit.
Still, if I take a break from twitter/bsky/cohost/spoutible/whatever for a month, I don't come back to "we decided this account is banned now and you can't get it back, have fun". Lost three mastodon accounts like that before I just gave up.
Yeah, I find firefox tends to leak memory when you have youtube tabs open. Still using only firefox unless testing for compatibility but it is a thing.