That hasn't been my experience. It depends on the kind of app you are writing. Are you writing a desktop UI app or game? Yes, C# apps tend to be better and you can use XAML or whatever. But I've written a bunch of build tools and network apps that work flawlessly on Windows and Unix family systems. Not everyone wants to switch to Microsoft tooling for their entire project just to support one more platform.
By comparison, C# tooling makes some things really difficult on Unix-like systems. For example, try spawning a process and redirecting file #3 to a pipe. I honestly do not know how to do that in C#. Python is fantastic at being cross-platform glue.
By comparison, C# tooling makes some things really difficult on Unix-like systems. For example, try spawning a process and redirecting file #3 to a pipe. I honestly do not know how to do that in C#. Python is fantastic at being cross-platform glue.