I can see people using these for work on virtual screens if the DPI is high enough and they're powerful enough. Already when I visit a coworking space I see people with a laptop up on a stand, a keyboard, a mouse, and ipad doing second monitor duty. That's close to 3k depending on the macbook and ipad they're using. This is pretty niche though.
Yeah if they can use the foviated rendering feature and iOS compatibility to make it look like my head's surrounded by various application windows with a sufficiently high resolution to read text in a browser/termina/slack/etc then I'd probably ditch my laptop.
My 2.8lbs laptop is great for carrying around the city but its 13" screen leaves something to be desired when it comes to productivity.
