I found Rider much more enjoyable to use than VS. It doesn't implement so many languages, tools, etc, as langd come in plugins. It's much faster than VS with Resharper, and as a bonus, it is similar in usability to the rest of Jetbrains IDEs, which I was already using it.

I only used .NET for modern Unity development, tho. I was using VS for C/C++ before using CLion and Riderfor that.

Last I used it it was unusable, but this was during the .NET 1.1.1 days, so I will have to check it out again.

Rider is definitely usable on Linux... it works on MacOS and Windows as well, and imo, better than VS for Mac. I've pretty much stuck to VS Code for pretty much everything, though the conspiracy theorist in me thinks MS intentionally gimps functionality in the VS Code extension support for .Net (they've shown this a couple times, live reload for example).

I work in .Net for a lot of backend code, mostly in WSL/Linux on VS Code. And it's not been horrible, though I'm much more efficient with Node or Deno at this point. Since .Net Core (and now .Net 5+) the space has changed a lot.