I don't think they are; they're effectively asking whether accounts will support multiple passkeys. This is a reasonable question IMO: if the protocol is not we

I don't think they are; they're effectively asking whether accounts will support multiple passkeys. This is a reasonable question IMO: if the protocol is not well-designed different services (account providers) may have different rules about how many passkeys can be attached to your account in their system. (E.g. "2 passkeys ought to be enough for anybody!") And for how they can be managed: removed and updated, particularly.