I think that we're going to be multiple generations of HMDs away from enough resolution to do text as well as today's monitors, unless someone gives up on having it projected into 3D space.
There was an article from someone critiquing it a while back, talking about some of the issues with the Apple Vision Pro (a rather expensive, high-resolution HMD) as a monitor replacement.
https://kguttag.com/2023/08/05/apple-vision-pro-part-5a-why-monitor-replacement-is-ridiculous/
https://kguttag.com/2023/08/09/apple-vision-pro-part-5b-more-on-monitor-replacement-is-ridiculous/
