Hide or Disable the Add Profile button in Settings

Hi,

I'm currently testing Edge version 79.0.309.71 with a view to push it out to our client estate.

I've created a group policy and I've been able to lock down most of the settings that we don't allow our users to change. However I cant seem to get rid of the Add Profile button in the Settings tab.

I've attached a screenshot of the Add Profile button that I'd like to either hide or disable.

Anyone know how to do this or have any suggestions?

Also, it looks like the policies are for the most part are the same in both the Computer and User settings. Is there any documentation that explains which should be set on each side rather than setting both?

Many thanks.