There’s some cryptic reference at the back of Walter Isaacson’s biography where Jobs is in bed, basically at deaths door, and playing with some kind of tv-like device that didn’t really make sense at the time because Isaacson couldn’t properly explain it. The section is something like Steve dying blissfully having seen the future of this tactile device, so it seems apparent now that he was playing with some kind of immersive prototype of the Vision Pro.