I'd say Visual Studio Code is not only not an IDE, it's also lighter weight than Atom, though obviously both are Electron. VS Code lacks even basic project management, having less tooling than even Sublime for project layout/folder structure - there's no equivalent for .sublime-project or .sublime-workspace.

For the most part, the Electron UIs use a ton more RAM and are much laggier. They do not tend to handle large files well. However, in exchange for that, they offer rich features. Plugins are way better - since obviously they have HTML/CSS at their disposal.

Also, VS Code's community is very active - same for Atom - and it leads to quite high quality plugins. The plugin for Go, for example, is quite great. I've been hoping for first-class Go support in Sublime just so I'd have a direct comparison, but in comparison to the VS Code plugins for Go, Sublime feels outright clunky and hard to configure.

I'd say give it a shot. If you can get past the fact that it's undoutably slower, and some of the semantics are different, it's really nice having full code intelligence and rich plugins.