I am really excited about WebAuthn finally being the end of usernames/passwords and credential leaks/thefts, so much so that I've implemented a Django library for usernameless authentication with WebAuthn:

https://pypi.org/project/django-webauthin/

It's live on some of my side projects, if you want to try it out:

https://www.pastery.net

https://www.eternum.io

https://www.deadmansswitch.net