Depending on the tenant configuration we often face a situation where mandatory+hidden packages are assigned to "all" users. This is the desired functionality during normal operations, but during PoC, Pilot or specific feature testing the installation adds extra time at no benefit.
Maybe this should only apply at the post OOBE "black" screen.
Main problem is to do a quick fresh install and get mainly around the Office 365 ProPlus installation.
Feature: While in the black screen a user can hold down STRG+SHIFT and so skip all (non system) software installations.