I have been successful in creating a popup button in Field Maps which directs users to S123 to complete a survey and prepopulate some fields in S123.
I'm using the below link to do this:
arcgis-survey123://?itemID=itemID&field:matchglobalid={GlobalID}
I'm transferring the GlobalID of the hosted feature layer to S123 using the above link.
I'm hoping that there's now a way, using the GlobalID, that i can create a link/button in the popups which will navigate a user to the completed survey.