I wasn't talking about seed phrases, but about user credentials in general.
That's up to the user. On a phone, typing RX6d'}jmfjk$ly#d%_!ZOyKtZdKoA28TFnBVx_.O7,H&r,,Pm5 is quit annoying. With a password manager, it's easy and I'm absolutely sure nobody will ever brute-force it. At least it's not a black box, and the user can easily understand how it works. Unlike the biometric mumble jumble which I assume has a back door for Apple or even agencies.