Hi,
Thank you for posting in Microsoft Q&A forum.
You can try the Block Screen time option under Devices > Configuration profiles > Create profile for iOS/iPadOS > General > Block Screen time.
For iOS 12.0 and newer, when set to Yes, it prevents users from setting their own Screen Time in the device settings (Settings > General > Screen Time), including content and privacy restrictions. Devices upgraded to iOS 12.0 won't see the restrictions tab in the device settings anymore (Settings > General > Device Management > Management Profile > Restrictions). These settings are in Screen Time.
For more information, please refer to:
iOS and iPadOS device settings to allow or restrict features using Intune
Thanks for your time. Have a nice day!
Best regards,
Simon
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