Of course it’s available on all OSes right now, but Windows has had incredible programmability (not comparable to Linux, but superior to MacOS), and since Powershell probably has a much more powerful scripting story than any other OS.
The ability to write quick scripts in Powershell, but also tap into C#, it’s massive standard library of code, and all the many 3rd party libraries and commingle that almost seamlessly with Powershell is tremendous.
Finally, Windows had probably the best toolkits to whip up a quick and dirty UI for anything you wanted to do with WinForms (name?) which was more powerful and yet quick and easy to use relative to any other toolkit on any other platform.
Unfortunately, what Windows has gained on the command line it appears to have lost in creating GUI driven scripts.
Maybe from a purely technical perspective. Windows can be made to do just about anything, has the most tools and the most support. A power user should care most about getting work done. If they care more about how they got it done than what they got done, that's called a hobbyist.
