My napkin math and some googling (with the information I could find at the time of release, so probably inaccurate in multiple ways):
Quest 2= ~18PPD
Quest pro = ~20PPD
Quest 3 = ~25PPD
Apple Vision = ~36PPD
Real life vision 60-120PPD
1920x1080 27" screen from a "normal" distance is roughly 36PPD.
So I think Apple vision will feel like previous generation of screens (pre "retina"), and it makes sense why they pushed it so far. I wouldn't want to look at anything with worse quality (720p for example). And this is just talking about "pro" developers that use multiple screens.