Make "hidden" UX option for Application Deployment Types actually hide everything
The installation program visibility in the User Experience tab on Application Deployment Types allows the selection "Hidden" which is defined as "Hidden: The deployment type runs hidden on client devices. Users see no installation activity." (https://docs.microsoft.com/en-us/sccm/apps/deploy-use/create-applications#bkmk_dt-ux)
However, this only applies to the FIRST process being spawned by the execution of the defined install/uninstall/repair commandline. All other processes are spawned interactively on the logged on user's desktop even if the option "Allow users to view and interact with the program installation" is NOT checked.
Right now this behavior prevents us from using Applications instead of Packages as exposing the installation process or script execution to the logged on user poses a risk in users interfering with the correct execution of the application.
This is a no-issue for Packages as their Program environment and deselected option "Allow users to interact with this program" actually hides everything the Package/Program are supposed to do.
I know that in the attached example the MSI runs with /QB- instead of /QN (which would hide that single instance) but that does not change the big picture: "Hidden" should be "hidden" and not "First process starts hidden and the selected option for the program interaction also does not apply".
Also submitted as Feedback SubmissionID 0b688ee3-7af0-44bb-9c25-24d38a08f2bb as I think this is more of a bug or lack of clear documentation than it is a "new" feature.