This doesn't do what parent was talking about.

This opens two separate windows, each representing a project. Any editor can do this. Parent meant opening two projects in the same window.

This is the number one reason I do not use VS Code. I love having multiple projects open in the same window at the same time, accessible with cmd+p fuzzy search in Sublime.

Does opening up the parent folder of the two project folders not accomplish that exactly?

I prefer thinking of codebases as folders in a file structure then as "projects", so I might be missing something obvious and is probably the reason I interpreted the parent comment's question the way I did.

It basically does, but then you can't take advantage of VS Code's git integration