Just curious how it works: do you touch type and never use mouse?
But also I switched to Vim and TMux so that I would need to take my hands off of the keyboard less.
1. Yes, you have no vision of the keyboard, so learning to touch type is essential
2. Lying down position, right hand on laptop keyboard, left hand on external USB keyboard (two-handed touch typing).
They've committed wholly and solely to pursuing this solution.
This is the "reverse" approach to AR. With Hololens etc. you see the real world and they overlay the screen over your real world. With the Quest, it's called passthrough, and you see everything on screens but real-time video from the real world is mixed in.