Imagine if she had to actually wipe them with a cloth and then wash and dry said cloth. Surely the window vac makes it easier and faster than traditional methods.
Can't decide whether she's trying to subtly brag about all of the rooms she has I whinging about the time it takes or whether she's dense enough to think that this is a real world problem.
Look around you crusty great lump and read the room, people are dying from cost of living difficulties choosing between heating and eating and in some cases doing neither, not to mention the poor children dying of strep a. Who gives a flying fart in space about your foggy windows that you could solve if you pulled your head out of your bizarrely large yet simultaneously small arse?