For every such workplace there are probably 100 companies that only support a Windows-based computer.

I think you overestimate the prevalence of such environments.

Those companies most often are not hiring thousands of software engineers.

That's the context where this matters.

The only reason companies care about open source is because

a) it's cheaper b) avoids lock-in and other dependencies

I don't see either of these being much of an advantage for linux on the desktop, although they will continue to be on server and embedded.

Well "not touching it at all" would've been great but I've had my main machine on Windows for about 2-3 years out of the last 14, so I don't think that's so rare.

Since 2013 I didn't even have a job anyone with a Windows machine /could have done/, because the stuff simply doesn't run or compile. (Yeah, WSL and all, the box was too slow to compile stuff natively already).

Thanks for sharing your story. This is the point I'm making.

Or they'll do what they do in the last two places I've worked.

"Oh you're a dev? Here's a mac"

Where May I work at such places? How do I find them?