Well, not really. Maybe what I can do at the Cloud Function is to Verify by default when the user signs up with a 3rd Pary Application. In that way the functions that can only be accessed by verified users are available.
Now, the other issue that I have is: if a user already signed up with the email and tries to login with the Google Account, it doesn’t work. I received an error, the user already exists. Any tips on how to fix that?