Allow Workforce for ArcGIS to pass GUID types to Survey123. For some odd reason, Workforce only allows you to pass data to fields that are of type "String" in Survey123 feature layer. Please add GUID types and perhaps other field types as well to the survey123 dropdown. This is essential for relating data since GUID types are often used to relate a primary table's GlobalID to a child layer's ParentGlobalID (guid) field.
In the screenshot below, I should see GUID types in the Survey123 Question dropdown.