This is sounding more and more complicated. I don't want a Yubikey. How does a password manager help my cloud account? What does enrolling multiple credentials even mean?
> How does a password manager help my cloud account?
It's an alternative place to store webauthn credentials, if you're worried about being locked out.
> What does enrolling multiple credentials even mean?
You register multiple passskeys for your account on a service. So if you lose access to one (because you yoinked your phone into orbit), you can use the other one.