You may be interested in https://immersedvr.com/. Some videos suggest that their coders use their VR workspace to code the app itself. Not exactly what you described of course :)
Fwiw I use this a couple hours a day a few times a week for coding. It’s great for focus and completely comfortable/readable as long as the text size isn’t tiny.
iSpatial is also an interesting experience. ImmersedVR is basically a 4+ screen desktop extended workspace while iSpatial gives each window its own screen in multi-level opp center environment. They both have some problems scaling certain content and are works in progress but are the standouts for getting things done in VR. Provided you can touch type well enough.