That situation sounds like the user is seated, which is not really served well by a large screen. I’m thinking more whiteboard/pinboard/etc sorts of use cases,

That situation sounds like the user is seated, which is not really served well by a large screen. I’m thinking more whiteboard/pinboard/etc sorts of use cases, where you’re typically standing and can walk around. Think Apple Freeform, Obsidian Canvas, or any other program where you have an infinite canvas (maps, etc). I could definitely see it being nice to be able to throw one of those up on a wall instead of having it boxed into a comparably small monitor.