Think of "code editor" and "IDE" as two endpoints on a continuum. VsCode is less of an IDE than Visual Studio or Eclipse, but more of an IDE than Atom.
It has has debugging and task running, after all. Sounds a lot like an IDE.
It has refactoring, and revision control integrated. You can compile and run code, you can set breakpoints and step through execution. That's waaaaay more than just an editor.
As someone who started on FoxBASE, Turbo BASIC and Turbo Pascal (all for DOS), it's amusing to read comments like these. We certainly called these things IDEs, and the sole reason was that you could build your program directly in them, and the debug it, breakpoints and all.
I wonder what someone coming from an earlier era would have to say on that...