Never mind found this setting in Jamf.
@KyleEricson Yup, @mm2270 is correct (of course!) that it's recommended to use the built-in Applications and Custom Settings profile creator in Jamf *if* you have a need to customize MAU's behavior. To @AmateurMacAdmin 's point, you don't have to set up a Config Profile for MAU to make it work - it'll work just fine out of the box (besides, that's what happens on a consumer device). In the old days of MAU, you might have wanted to push a Config Profile to pre-populate the 'Applications' dictionary to forcibly register apps with MAU, but that's really not necessary these days as the Office apps register themselves in the 'ApplicationsSystem' key of computer-wide preferences, so they will get updated by MAU even if the user never launches the apps.