I think C# might be the closest mainstream language, but I’d say explicit pointers, interior pointers, and slices as the default list type might be things that make Go programming a little lower level.
There are also other differences that would prevent using C#’s system as is - Go doesn’t have the reference/value type dichotomy or inheritance. I think they also wanted to be able to abstract across float/doubles etc (unless C# added that recently).
Anyway I like both languages and I’m not trying claim one is better than the other, just trying to explain the design space Go seems to occupy.
There are also other differences that would prevent using C#’s system as is - Go doesn’t have the reference/value type dichotomy or inheritance. I think they also wanted to be able to abstract across float/doubles etc (unless C# added that recently).
Anyway I like both languages and I’m not trying claim one is better than the other, just trying to explain the design space Go seems to occupy.