The only workplaces that realistically allow people to use Linux desktops are academia and top-5%-sexiness-factor startups. The other 95% of us have to use what our boss tells us to use (and he got told by the insurance company that scammed him into cybersecurity insurance). Those of us who have families, don't spend our leisure time staring into yet another desktop computer that isn't our work machine, so how, on earth, would we be using Linux desktops?
Conversely: Imagine someone has spent an 8-hour-workday setting up their tiling window manager, so they can “improve their productivity” because now they don't need to spend 2 minutes painting all their windows into the right positions in the morning. That's an investment of time that takes (8*60)/2 = 240 days, so roughly one work-year, to amortize. What does that tell you about the time management skills of that person?
I don't say that to knock tiling window managers: If you're into it, be my guest. It's perfectly fine for reasonable people to reasonably disagree on those kinds of subjective preferences. That's what subjectivity is all about. And that's why it's valuable to hire a diverse range of people who have different viewpoints on these kinds of things.
EDIT: ...and that's what I mean by "diversity": To include both family-people and people without families. Young and old. People with an academic background and people without one. Vi-people and emacs-people. Please don't strawman me by bringing up disabled people and work permits and whatnot.