Have you actually checked your device management settings?
Yes. In Settings > General > VPN & Device Management, it says 'Sign in to Work or School Account'. Is there a different device management setting that I should be looking at?
Yes, there are alt app stores that try to get you to agree to installing a MDM
Yes. In Settings > General > VPN & Device Management, it says 'Sign in to Work or School Account'. Is there a different device management setting that I should be looking at?