🐧 Why is Java considered more of a "first class citizen" in the Linux world compared to .NET/Mono?

Objectively speaking, they're both garbage collected runtimes, one compiles to bytecode and the other to CIL. In that sense, none of them are "native citizens" of Linux, for lack of a better word.

Now, the spite of the Tux folks against Microsoft is also quite understandable given the history of open source and the early days of evolution of both the operating systems. But times have changed today, isn't it? Today's linux users and developers shouldn't have that baggage on their shoulders while programming.

But to this day, things like MonoDevelop and the mono runtime aren't highly used and/or supported in the Linux distros, isn't it? If you wanted to create a cross-platform GUI, for example, most would think of a Java framework like Swing or JavaFX instead of Mono. WinForms support was already expected on the Linux distro considering the Mono project has been going on for so long. Where do you think the bottleneck really is? And where do you see the future of ".NET on Linux" going?