Could possibly work with Xenforo Oauth2?

Hello! I’m looking for a simple plugin to connect my OAuth2 provider, in my case it’s Xenforo.
https://xenforo.com/community/threads/single-sign-on-and-more-with-oauth2-in-xenforo-2-3.217519/

I think it might even work? I have one question though if the user doesn’t exist, would it auto create it before trying to login as them?

Thanks!