Default behavior of Gmail app when you block using conditional access policy

Hi All

Can some one shed some lights on default behaviour when you try to configure the company o365 email account in  the Gmail app client . there is a conditional access policy defined to stop the usage so we expect users to be redirected to use outlook client.

instead of this expected behaviour (as per our understanding) , we notice that Gmail client is not allowing to configure the mail. its really appreciate if someone can enlighten us on the behavior.