@JSevillano,Thanks for posting in Q&A.
From your description, I know that you want to deploy Show or Hide Apps policy via Intune for iPad.
Based on my researching, I find that you can create a Show or hide apps policy under Device restrictions to restrict whether apps can be shown or hidden.
Here are some steps you can refer.
1.This feature applies to iOS 9.3 and newer, iPadOS 13.0 and newer and settings appliy to Automated device enrollment (supervised).
2.Sign in Intune portal, go to Configuration profiles > Create a new policy > Select iOS/iPadOS as Platform and Templates as Profile type > Select Device restrictions> Click Create.
3.In Configuration settings page, find Show or Hide Apps setting and you can configure Hidden apps or Visible apps.
https://learn.microsoft.com/en-us/mem/intune/configuration/device-restrictions-ios#show-or-hide-apps
Hope above information can be helpful.
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