Ensure the testing client is enrolled to Intune under same Azure directory where application is registered.
For MAC enrollment process, refer to the following Microsoft support documents.
https://docs.microsoft.com/en-us/mem/intune/enrollment/macos-enroll
https://docs.microsoft.com/en-us/mem/intune/user-help/enroll-your-device-in-intune-macos-cp
Or
For windows enrollment process, refer to the following Microsoft support documents.
Install Connect Tunnel or log in from extra web to Intune Configured Realm.
After successful login, if Intune profile conditions are satisfied, it should classify to Intune zone else it falls back to default or quarantine zone.