I honestly have no idea where you would get this idea from. C# is a pretty opinionated language and it's worst faults all come from version 1.0 where it was mostly a clone of Java. They've been very carefully undoing that for years now.
It's a far more comfortable and strict language now than before.
`.ConfigureAwait(bool)` is another where it is relevant, but only in some contexts.
This is precisely because the language itself operates in many runtime scenarios.
But I'm not sure that's really a problem. Does the OP expect everyone to use an entirely different languages every single context? I have web applications and desktop applications that interact with Office that share common code.
Even `dynamic` is pretty nice as far as weird dynamic language features are concerned.
Interestingly enough `.ConfigureAwait(bool)` is entirely the opposite of `dynamic` -- it's not a language feature at all but instead a library call. I could argue that might instead be better as a keyword.
This inspired the invokedynamic bytecode in the JVM, which has brought many benefits and much more use than the original .NET features, e.g. how lambdas get generated.
The only things that I wish for are: rusts borrow-checker and memory management. And the AOT story would be more natural.
Besides that, for me, it is the general purpose language.
Yes, C# is a jack of all trades and can be used at many things. Web, desktop mobile, microservices, CLI, embedded software, games. Probably is not fitted for writing operating systems kernels due to the GC but most areas can be tackled with C#.
Midori would like to have a word with you: