So in the event that i lost everything, i mean catastrophic, like my house burned to the ground with all my belongings, i have no kin nor "trust alternate people" configured for my account, my password manager requires my "synced in google/apple drive/cloud" passkey or my last known device, i can't retrieve it in anyway, how can i recover my account?

Either have to prove that m me to my account provider, which essentially is huge security hole since what data it will be required to prove might be more easy to fake (kinda like how people do sim swapping) and stole my passkey or do the "crypto thing", that if you lost your decryption key all your money is gone forever and ever and start fresh.

I mean my point is... password are not going to be deprecated, we had so many attempts to murder them but their convenience outmatch any other solutions, feels like passkey aren't well designed imho if the backup requires a password, then passwords won't be deprecated... maybe passkeys aren't meant to replace password but long-sessions oauth tokens if you ask me why passkeys exists.