I agree with you, but there doesn't really seem to be any native application that occupies the same space as VS Code or Atom. VSCode is not just a text editor like vim or Notepad++, as some people here imply. As you say, it's a miniature IDE. And it's far more comprehensive than Sublime Text.

For .NET Core + TypeScript, VS Code is almost feature parity with full blown VS, while being an awful lot faster. The only thing I find particularly lacking is debugging, but even that is coming along well.