How to forbid logging in with Google/Girhub Signin?

Hi all,

I want to invite other users to organization in MongoDB Atlas, and I want to enforce a MFA.
My problem is: if user is registered with Google/Github signin, MongoDB allows such a user to do stuff in organization even though they may not have a MFA set up for their Google account (tested it myself).

How to make sure, that user is registered not using a Google Signin and enforce a password + MFA?

Thank you