It's hard to talk about something so based in individual perception: it's true, my eyes could literally be different. However, my strong suspicion is that the

It's hard to talk about something so based in individual perception: it's true, my eyes could literally be different. However, my strong suspicion is that the visionOS native apps have a larger font size and bigger, smoother UX elements. In this case, the mind doesn't notice a little blurriness around the edges. Whereas with a mirrored display, there's tons of tiny thin lines where it's easier to notice that visual acuity is not 100%.