With package manager I mean nuget. The last time I used .net (one year ago) ".Net core" was a target platform and already renamed to ".Net".

No, that's not a preference. I'm not complaining about a lack of options, I really don't care how code looks, if it all looks the same. And it fails at that. It quite often simply takes the code as it is and indents it a little bit. Clang-format (and rustfmt and dart format and plenty of others) give you the nice, tidy and homogeneous code layout i expect from a auto formatter.