For a remote interview that I had a while back over Cisco WebEx, when things didn't work on my Fedora machine immediately, I'm glad I had my wife's XPS13 with Windows as stand by. Zero time wasted, worked immediately. If that didnt work, it would have been a phone call. I really wouldn't have wanted to muck around with some other distro at that point in time, even if I disagreed with the values of the software developers in question.
For those situations where someone emails me an Excel or Word file that they would like my edits in, and I'm simply not in the position to extoll the virtues of open formats or coach them in Markdown or LaTeX, I have a Windows VM and office.