I was a co-op at a company in the 90s that specialzed in mechanical simulation of virtual prototypes. The software was primarily used on Unix (most of us used SGI boxes) but there was also a Windows port for smaller jobs and laptop use and (at least the dev environment) was all built on Cygwin.
Git also ships bash for windows and doesn't require WSL. Can be even set as a default shell for OpenSSH so you can just ssh into windows bash...
bash has been available on Windows since at least before the mid '90s.
Yes I remember using cygwin back in 2004ish to provide bash when I had to use a windows pc at work (very briefly)
I was a co-op at a company in the 90s that specialzed in mechanical simulation of virtual prototypes. The software was primarily used on Unix (most of us used SGI boxes) but there was also a Windows port for smaller jobs and laptop use and (at least the dev environment) was all built on Cygwin.