They are and it is working fine. But we can only deploy them after the Device Setup, during the account setup, so after a user logs in. That means f.e. that the users have to restart the devices, because of many of the quality updates and drivers, but also have to wait about 30-60 minutes.

With my question I was more looking at the possibility to use the OOBE Updates, before the users log in. During the technician phase or PPD.