The billions dollar VR/AR headset question
daringfireball.net
daringfireball.net
You have to literally "think outside the box" and realize that you won't be looking at extra monitors, but that each application window can be like its on screen of any size, floating wherever you want it. You aren't focusing on every window or screen at once, the detail is there when you look directly at it.
From CES 2023: https://www.digilens.com/argo/ I think we will have smart glasses by the end of the decade, considering this and the Hololens 2
Another that I'll add is that I'm nearsighted and everything on the headset display is always in focus for me without my glasses.