Comment by pjmlp

Many of those features were already available in MS-DOS and Windows 3.x IDEs from Borland for Turbo Pascal and C++.

Which is why when I got into UNIX development felt like going into the stone age of development tools, thankfully XEmacs was already there.

Which by the way, it was born for Energize C++, in 1993!

https://www.youtube.com/watch?v=pQQTScuApWk

Also here is what NeXTSTEP development environment looked like, used for Quake tooling development, in a 1991 marketing video.

https://www.youtube.com/watch?v=UGhfB-NICzg

Which is why, I usually assert I cannot understand the nostalgia of CLI and TUI, being there at the time, and not being able to use some of these systems, due to the amount of money they required.