The thing is, now most things I do target some flavour of Linux - and although I could write C# and target Linux with absolutely no problem - there are a lot of other options that C# has to complete with. Granted those options would also, at least in theory, have been viable options on Windows but it definitely would have felt a bit like paddling against the flow to host Ruby on Rails or Python or whatever on Windows.
And if I want to target command line or desktop with something cross-platform I'm going to compile to a native binary that requires minimal dependencies, so Rust feels like a more natural fit than C#, especially with Microsoft's desktop UI story being such a dog's breakfast (and even more-so when you account for cross-platform).
Again, in a commercial environment, I could imagine using Electron for that sort of thing because that's what most companies do (but because everything I do nowadays is backend, web, or systems integration, I haven't written a desktop app in a commercial context in 13 years, and I haven't written a command line app in that context since just before the pandemic). However, for my own projects I want to hew as closely as possible to my own principles and ideals and, for them, it'll be a cold day in hell before I ship a desktop or command line app that needs some giant runtime like Electron as a dependency.
Again, the point is that C#, whilst in many ways a great language, doesn't come out as the frontrunner.
> As for TypeScript? Absolutely loathe it.
The main things I don't like about TS are the volatile tooling, bad habits from other devs (not declaring types), compromised ORMs, require lots of package hunting, and module system.
Language is fine, tho.
I guess I... just got bored of it, and fed up of Microsoft. I came to hate Windows and having to work on Windows so much that it sort of tainted C# for me. I'm not saying I'd never use it again but, whilst it will run cross-platform nowadays, so will loads of other languages and frameworks, so it's never at the top of the list when it comes to choosing something for a new project.
As for TypeScript? Absolutely loathe it. I'll use it professionally when I have to, but I'd never use it for one of my own projects. It's just so ugly I don't even like looking at it. I get why people like it but, for me, it's not enough. If I'm staring at something all day then, I'm sorry, it can't be ugly.
But, strangely, I still use and enjoy VS Code from Microsoft, and have no plans to switch to anything else.
(I also still have an Office subscription - or whatever it is Microsoft are calling that suite nowadays, I don't care - because I still use both Excel and Word fairly frequently. I could probably get by without, but I actually quite like Office - even on the Mac.)