Idle timeout session

Hi Team,

I have configured an idle session timeout of 30 minutes (with a 5-minute warning) in the SharePoint Admin Center. However, this is being bypassed whenever users select the 'Stay signed in' option during login. I have tried replicating these settings in the Microsoft 365 Admin Center and through a Conditional Access policy, but the behavior remains the same. How can I correctly configure the system so that the idle timeout takes priority and overrides the 'Stay signed in' choice?

Thanks

Athulya