If they wanted to improve things, they could include a small little xml link in their password change and registration pages that tells my password manager what passwords are allowed so it could auto-generate them rather than me trying to find out that they disallow anything longer than 32 characters, or that the ampersand isn't permitted. (Or, like years ago, when I discovered that Adobe didn't disallow long passwords they just truncated them to 64 characters internally and wouldn't accept the longer one after.)

Passkeys solve all that by hiding key generation entirely from users. But it requires a password manager and good backups.

Hiding things from me is never going to be a good thing. Hiding things from most people will never be a good thing.