How can I unable gsuit SSO while using it as a ID provider

[louis.kim]

I am trying to set two factor authorization with Atlassian Access. But every user who is connected by Gsuit ID provider can log-in whit Gmail Account after I set domain as Gsuit

How can I force them to log in only with Atlassian account while connecting by Gsuite.

* or Are there any other ways to use Atlassian Access without domain set? In this case, I could disconnect Gsuit and force them to use two factor authorization.

* I don't want to use Gsuit's two factor authorization.