Agreed-- c# has a lot of these advantages and is a lot easier to write (yes, I know this will depend). Plus it has a much larger ecosystem

The only thing I can think of: I dont think c# can compile as easy to a single executable binary, like Go (or even rust)?

It's had support for single exe compilation for a while now, although the file sizes can get large without being more careful about dependencies.

.Net SRE here, you can do self contained executable but there is some foot guns there and if you are doing containers already, I'd just skip it.