Personally, it comes down to the input method. The entire UI is different because the input method demands it. The version of Safari on Vision Pro will be diffe

Personally, it comes down to the input method. The entire UI is different because the input method demands it. The version of Safari on Vision Pro will be different too. But the iPhone and iPad versions are practically the same. Of course whether macOS and iOS Safari are different enough to qualify as separate things depends entirely on context. I don't know the context here, but it seems unlikely that Apple's argument makes sense.