To be clear, I don't work for Apple. :) And I'm not discounting that there are usage patterns that might lead to persistent bad experiences (like your example with Numbers).
But the implication that Keychain just kind of forgets saved Passkeys once in a while seems alarmist and probably unfounded.
But the implication that Keychain just kind of forgets saved Passkeys once in a while seems alarmist and probably unfounded.