I agree that a good IDE experience is a core part of the language nowadays. And in my experience, VS Code + TypeScript is by far the best IDE experience, far better than Clojure + Emacs ever was. A significant amount of productivity that I thought that combination was giving me turned out to just be a feeling of productivity because of how ninja the stuff I was doing was. Similar to how I'm faster in Emacs than I was in Vim, but I thought I was faster in Vim simply because the complexity or cleverness of the commands I was typing in before I learned Emacs.