Approve Request for GRC

Hi Experts,

I am new, relatively in the mobile space. Here in our company we would like to use the Approve Request Fiori APP specifically to approve the GRC request.

The GRC server resides in other box where I have not installed Fiori. So my question is very simple. Do I need to install fiori in the GRC box in order to see all the requests? or when I created or enabled the services the System alias will be poiting to my GRC box?