The "Use Cases" section in particular does a pretty good job of explaining how this would work from a user's perspective: https://www.w3.org/TR/2018/CR-webauthn-20180320/#use-cases
The "Use Cases" section in particular does a pretty good job of explaining how this would work from a user's perspective: https://www.w3.org/TR/2018/CR-webauthn-20180320/#use-cases