I really miss the old Borland Turbo [*] days, both in terms of the languages and the IDEs. (Turbo BASIC wasn't my first BASIC, but Turbo Pascal and Turbo C were absolutely formative for me.)

VS Code had a little bit of that feel, but it's grown so much and added so many features that it's lost it. And the closest thing I've found to the feeling of writing C in the 90s was Arduino sketches a decade ago.