IMO Go is not a great language for Desktop automation like this. A script language, not statically typed language fits better, because it makes it possible to iterate faster. Also these kind of automation scripts are not huge usually, or if they are, they are very simple. Also don't have to be fast. The only advantage I can think of Go has here is the easy deployability for multiple platforms, but that's not even possible, because the platforms has different UI-s with different sizes, so you can't write one script and expect to work on multiple platforms.