Hi,
To clarify: Do you need further help on this?
I’ve checked your site and you seem to have achieved this already.
The simplest way to make the phone link non-clickable on desktop is by not adding the URL link (no href) on your phone link used in primary menu (the one on desktop).
You then set a completely separate menu with similar menu items except this time, you add the URL link for your phone link menu item. You then add it on your off-canvas menu and use this as your menu for mobile.
But I believe you’re doing this already.