[arccy]

I think C# is just too associated to .Net like how Ruby is tied to Rails. Plus it's a Microsoft managed language, and if you're looking to move out of JS / TS, then you probably don't trust Microsoft's management of languages...

[neonsunset]

I mean, .NET is what makes C# so good. You also get to use F#, you get to target all these platforms and a very flexible deployment/compilation model for your applications - something that e.g. neither Go nor Java offer to the same extent.

There is also a greater selection of IDEs and LS's.