This functionality is built into the Prestage Enrollment section in Jamf
Pro. Here is a link to the discussion where I found this:
https://www.jamf.com/jamf-nation/discussions/30574/local-admin-needed-before-user-account#responseChild201984
I too can confirm that the 13.2 update has not fixed the Conference
Display issue. The TV will show the Conference Display Message but still
shows the Apps behind that. It is also seems like it is not possible to
put the TV to sleep when in Conferenc...