> VSCode and Visual Studio are two completely different products, one is a code editor, and the other is a full blown IDE

What does Visual Studio from around 2000 have that VSCode doesn't? I get that VSCode offloads a lot of work to the language server and extensions, but it offers IDE-like features including auto-completion, code navigation, and the UI is more than just code editing - it integrates version control, a test runner, debugging, etc. What is it missing that makes it not a full blown IDE?