vscode is basically a bunch of different tools duct taped together and, as a result, constantly breaks. It's a lot closer to being emacs than it is to being an IDE (and I say this as a fervent emacs user outside of large projects). Even with the language servers, IDE functionality is going to be playing catch-up for the next decade. Intellij definitely has a leg up there.

I've never used visual studio before so I assume the comparison is going to turn up a different set of issues. However, being tied to windows is probably not a good thing in the long term.