It's still nowhere near the same level of experience that Rider or VS offer.
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.
The WinForms designer is wonderful. I can throw up an ugly CRUD app that works so insanely fast with it. The web-equivalents are horrible. Everyone is trying to make a rich web app to write rich web apps and IMHO they are all targeting way too low on the "technical ability" scale for their users.
Though web is harder, since apps need to be responsive, and cross plat, and automating code gen of CSS that does that cannot be easy, and having a form designer UI expose settings for how a UI resizes itself doesn't sound like a UX challenge I'd want to tackle.
I find it's the opposite. VSCode is just a very barebones editor with an ecosystem of plugins that may or may not be maintained. I always need to search through a list of hundreds of plugins to figure out which ones I need for this particular techstack.
I started using Rider this year and it's been much, much better than VS and VSCode for me. I can use it in both Windows and Linux. Search experience in Rider is my favorite part of the UX. I find VSCode clunky in comparison.
I use VSCode when doing Vue stuff. I like it for that. But I still miss the nice search UX of Rider. Maybe I need to dive deeper to see if there is a setting or another plugin that can get me that same feeling.