What is a modern IDE? It seems like the more recent trend has moved away from bloated IDEs and more to a bring your editor and own plugins environment. From my perspective IDEs lost and things are now closer to how Vim users have been coding for decades.
It doesn't seem so to me. With LSP, those editors, including Vim, can be very large and featureful.
A modern (or any) IDE, in my opinion, can debug your code, push parts of the editor into REPL (with debugging), understand code for things like autocomplete, linting, quick navigation and usage search. And yes, Vim can serve as a modern IDE if you spend enough time with it.
I'm saying the trend (IMHO) is not away from a full blown IDE and that smaller editors with plugins and LSP can fill the the role as well, including the resource consumption.
