TL;DR: don't use eventlet on native windows. Do use eventlet in WSL, because it's basically linux.

General advice - if you can use modern python async IO, it's better choice than any light threading shim, like eventlet.

It works with couple of issues platform-windows but only with select system call, which is the worst one of supported hubs.

In most cases eventlet does not use threads. eventlet.tpool is nice to extend existing app to use cores, but threads in python contend for GIL.

AFAIK, fork on windows is not available, and eventlet can't help with that.