People like VSCode so much that they write extensions that mimick some of the more useful IDE functions. But an IDE comes preconfigured for one language/environment.

I almost don't code JavaScript/TypeScript, it's not very useful in embedded work. I use VSCode, but I have no use for this IDE. This article is meaningless if you're not in the same niche as the author. While VSCode is an editor that is made for any language.