Use case is as follows: Users leveraging a company owned device should be prompted to install app policy profile A when logging into their GSuite account. Users on a user owned device should be prompted to leverage app profile policy B when logging into the GSuite account. It seems like there might be a path to do this for Android but iOS is not clear.
No, this configuration applies to users not devices. For users devices you can enable "work profile" and the configuration only takes effects when a work app is open.
But some small configuration apply only to company owned devices.