[blendergeek]

> Does the Passkey-enabled account support multiple passkeys?

There in lies the issue. With passwords, it doesn't matter if the account supports multiple passwords. I can share the one I have

> Presuambly the same logic applies for a service that permits multiple passkeys. Each person would register a passkey on their device using the shared credential.

but can I simply share the passkeys without someone's permission (other than my own)?