Corporate adoption is Linux is absolutely a completely different discussion. Users of corporate devices are not the owners of their device, they have no expectation of control or freedom, and the tasks completed on these devices are typically simple and restricted. So yes, very little of my initial comment applies to that.
As for your other arguments, I would agree that the general everyday public with very little knowledge of Linux or the differences from Windows should have little expectation of switching over unless they decide to investigate for themselves. The main target my complaints are those people who come in to threads like these who do have the technical understanding to complain about Windows and understand that Linux is different, but constantly whine that they could never switch because this reason or that reason and oh won’t those Linux nerds please just accept that Windows is better even though we’re talking in the eighteenth thread full of people who hate it.
Given that there are governmental departments for interacting with muggles, and qualifications taught at Hogwarts, my assumption was that it was like many other fields of study typical members of the public did know little, but plenty of research exists. How much does the typical person know about nuclear thermodynamics? Not much, and they don’t really need to, but that doesn’t mean all of humanity knows nothing. Hermione states pretty regularly that the spells protecting Hogwarts protect it from being discovered and prevent electrical communications from functioning.
I would think that, in a war with muggles, any wizard signing up to fight would be given training (by those few governmental and academic experts) in muggle warfare, weaponry, and relevant defensive spells needed for such a conflict.