

Then the iPhone user should not be able to use Personal Hotspot.


The problem is that, as highlighted in this article, you can't outright turn off Personal Hotspot in iOS 13.1 and later. If you open a recent version of Apple Configurator 2, create a new profile, go to the Restrictions section (click "Configure") and scroll down you will find " Allow modifying Personal Hotspot settings (supervised only)". As of Apple Configurator 2.9 there is a new relevant configuration option (only for supervised devices).
