Use the pullData calculation in the Survey123 Connect form to pull the ArcGIS Online User License Type (Viewer, Creator, Professional, etc.)
Currently you can use the pullData("@Property",) function to auto populate a field with username, email, first name, last name, etc. However, the userLicenseType is not available as a choice.
https://doc.arcgis.com/en/survey123/desktop/create-surveys/prepopulateanswers.htm