There’s a similar approach available for the Meta quest 2 (and I’m sure the quest pro and quest 3) but it takes a little reorienting to stop thinking in terms of “screens”
The way I mentally organize projects would make this both deeply compelling and useful,
and a total disaster lol
In some ways this is particularly great, because humans involved to have a lot of spatial memory in this way.
(It's an interesting footnote here that the early pre-OS X Mac OS Finder was sometimes much beloved [or hated, depending on your OCD predilection and/or personality type] because it was a Spatial UI. Files and folders would "stay" where you placed them and you could have and build all sorts of interesting muscle memory of where on your desktop a file was or even a deep tree of folder navigations, with scenic landmarks along the way. Apple discarded that a long time ago now, but there was something delightful in that old Spatial UI.)
You’re right though, if they allowed windows to freely float, it would also solve the issue.
(That’s why I was focusing more on the mirror-your-Mac functionality)