I think you’re mixing up Visual Studio and Visual Studio Code. Visual Studio is a massively bloated IDE mostly used for .NET development, but supports other things too. It’s proprietary, massive, slow and a pain to work with, and doesn’t run on Linux afaik
Visual Studio Code, on the other hand, is an Electron app and therefore runs almost everywhere, and is (partly or totally, I’m not sure) open source. Nothing wrong with coding in VS Code, it’s a decent IDE