> Edit: One final consideration, my spouse and I share user/name passwords for some things (notably Pandora and our Amazon Prime account) since they don’t handle things like family logins well; how do both my wife and I use amazon or Pandora with passkeys? Do we each set up passkeys? How do I get her Pass if that’s not an option?

Lets say it is a android phone. Open amazon app. login in the usual user/password + 2FA (like with QRcode or phone). create passkey. done. This passkey would have been now synced to your google account.

Take next spouse phone. Open amazon website or app. try login it will try for passkey but cannot find it. so

- login in the usual user/password + 2FA (like with QRcode or phone). create passkey. done - Now this passkey would have synced to spouse google account.

In future, assuming you have apple or windows laptop. assume you have signed into Google (chrome). Now go to amazon. It will ask - shall I sign in with passkey. Yes, give your macos fingerprint or windows hello or password of that laptop. login Done magically. You dont even need to remember username or password.

Assuming you both have iPhones. You can sync the passkey to icloud account. And for every new iDevice it will be available.

The main bottleneck of passkey would be that all 3rd party sites will have another non-passkey way as backup to login. I have never seen a website that would say - remove all other methods and keep only passkey.

In a way passkey is 99% convenience. If a hacker would some how get your sms and password they can by-pass.