Small startup here as well, but we target 95% Windows (going back all the way to XP) and we recently transitioned to a WSL Clang-based toolchain (linking against MSVCRT) so it would be feasible for someone to use a pure Linux environment for serious Windows development, although inconvenient because it is untestable.

If you target xp let them test under wine, win-win for everyon

And when you run into bugs, how do you know if it's an issue with your software, Wine or Windows XP?

The same way you normally tell if a bug is in the program or OS, except now it's easier because you can swap out half the equation for comparison?

> Clearly you're not developing software for Windows,

that's a great point, though. You can live in a world where you can have a software business that does not depend on Windows. 20 years ago, that was pretty much a dream.

Software businesses are a pretty small cross section of businesses though.

uh, didn’t most banking environment ran on as/400 and derivatives back then?