I can have VSCode installed and running with my personal settings on any OS within 2 minutes flat. I don't have to find a secret license key, login with any account, or pick through a list of 100 features in the installer. Then, once it's installed, well VSCode is just a better experience for the basic act of editing source code. Multiple cursors, quickly opening files by typing the name (without having to type a greater than sign followed by a space first every time like you do in VS), sane default keyboard shortcuts for managing/splitting documents and so on... Plus, it's got way better facilities for working with front-end web code than VS ever had and some other major features such as remote editing oh and one other little thing: it's fully cross-platform.
And that's the reason for VSCodes wild success. Let's hope Microsoft never fucks it up by trying to glom the rest of their Azure/Microsoft Account crap onto it too much.
Luckily, I don't have to work on anything that needs a designer anymore, like WinForms, but if I did I would certainly install VS. Even then - I think I'd only use VS for the designer and go back to VSCode for everything else. (And I love Windows and I used to love VS, having used both of them for 30 years and 15 years respectively.)
But the VSCode team also covered a lot of ground faster than VS ever did, adding feature after feature. So, what do you want for C#? I'm certain that we'll be getting it soon.