How to use Multiple conditions for a single control in New and Edit Mode

Has anyone coming up with a solution to initially have a field available conditionally and after submission being able to disable the same control for editing based on a rule

In the example below I used a field called Ranking able to display either Food or Drinks Input selection.

After submission I want to make the same control disabled for editing only allowed by Admins.

I have created 2 rules (Hide and a second one for Disable on the same panel) on the same panel and that works.

Is this the recommended way of doing this ?

Found a solution for selectively disabling a control based on sharePoint Group membership:

Although not present in the formula builder below seems to work:

not(fn-IsMemberOfGroup("Your SharePoint Group Name"))

Regards

Jaap