Language Servers that get installed automatically with all it's dependencies etc. Sure, but you cannot deny the productivity boost of zero-config Intellisense autocompletion that works out of the box. Sure, greybeards may dismiss this as 'entitled thinking' when in the Good Ol' Days when people only needed ACME with no syntax highlighting or simply Ed. The latter requires tons of plugins and config to get anywhere near the featureset of the former while the former often seem to have way too many knobs hidden behind collapsible panels on the side. When you were forced to choose between either slow heavy weights like Visual Studio/Intellij (and its relatives P圜harm et alia)/Eclipse that took forever to start up without a SSD drive or fast featureless editors like Sublime Text, Gedit, Notepad++, Vim/Emacs etc.

Indeed, most people seem to forget the dark ages before VS Code.