I'll stick with my C#/.NET stack which has been going strong for almost 20 years and it's still kicking. What developer tools has Google supported for that long? No thanks.
Go has been out for ten years now, not six months.
Microsoft's focus on developers from its founding gives us a great deal of confidence about a respectable level of support for C#/.Net, although their movement from closed source is too new to depend on quite yet.
Whereas Oracle's acquisition of "Java" has prompted a lot of people including myself to step smartly back from its ecosystem due to the demonstrated risks of that malevolent company. See only the latest thing I've learned about it withholding a TCK (test suite) license to AdoptOpenJDK: https://adoptopenjdk.net/quality.html
Microsoft institutionally had a "does not play well with others" attitude to the point of stark figurative murderousness as we saw in SCO v. The World during the Ballmer years ... and as for "robustness", the one signal failing of Nadella is quality.... I could make a case it's as risky an option in the medium and long term as these other ones, and confidently state it will take at least a decades before a lot of us maybe trust Microsoft's good will outside its Windows ecosystem, hindering wider adaptation.
It's a first class citizen in terms of cross-platform compatibility. And if you don't like Visual Studio on Windows or Mac, there's VS Code (which obviously runs on Linux as well), you can always pay for Rider (which is great btw.)