Sign-in to Buddypress via Twitter or Facebook

Hello,

When a user signs-in to Buddypress by authenticating using Twitter or Facebook, does their information (username, password, email, etc) get saved to the buddypress database just like if their were to create a buddypress account?

From buddypress' perspective, is signing-in with Twitter or Facebook the same as if the user created a new account on Buddypress?

Twitconnect is one plugin I am evaluating using: https://premium.wpmudev.org/blog/twitconnect-plugin-now-integrates-twitter-and-buddypress-for-single-sign-on-and-avatars/

What other Buddypress-compatible plugins are people using to integrate Twitter or Facebook sign-in?

Thanks!