>...AR glasses project a full desktop in front of us and let us control it with an imaginary keyboard...
That sounds only slightly more dreadful than the touchscreen keyboard experience we have currently; I seem to be in a minority but proper tactile keyboards, even tiny ones, are worlds better IMO. The best phone I ever had for input was a Blackberry Bold 9700, and I miss that keyboard almost literally every single time I type something on my magic screen.
You'll be happy to know that the current trend is to combine AR/VR with a physical keyboard. The Quest has an option to bring your physical Bluetooth keyboard into VR -- it only supports a small subset of models right now, though.
That sounds only slightly more dreadful than the touchscreen keyboard experience we have currently; I seem to be in a minority but proper tactile keyboards, even tiny ones, are worlds better IMO. The best phone I ever had for input was a Blackberry Bold 9700, and I miss that keyboard almost literally every single time I type something on my magic screen.