Then why'd you pick a 50+ character password? No one made you do that. That's your fault, not Apple's.

- As you said, it's a multi-platform account, so probably multiple devices in multiple locations will need the password. Meaning you won't have easy access to your password manager. - Popular account, so you'll likely be using it often, probably re-typing or pasting it.

Common sense says that manually typing out a password was a likely scenario.

Switch to a phrase-based password. It'll still be really secure, and you'll be freed from your self-inflicted woes.