It is nested sure but the entire thing fits on 1080p monitor

Well... depending on your default level of zoom.

After staring at code for 12 hours a day for a few decades my zoom is 125% by default.

Careful, at this rate your zoom level will be an unreadable 900% after only a few centuries...

So long as you abandon the concept of windows and run your text editor in full screen mode. Good luck with side-by-side diffs.

Better make those monitors curved