When I use JetBrains I have three 27" monitors - one in portrait - and multiple files open simultaneously in all of them, plus build messages, file lists, and run logging. And (sometimes) the debugger.

For some projects I have different language environments - like CLion and PyCharm - open simultaneously. With a browser in the background for checking docs and StackOverflow.

I suppose I could do all of that in Vim too, but I'm not sure why I'd want to.

There are things I'd improve about JetBrains, not least the ability to effortlessly open the same project on different machines. Currently that's clunky for some languages.

But generally it's a damn fine product.