"Consistent design language" doesn't mean "behave exactly the same". That's exactly what Catalyst is for — to take iPad apps and make them good macOS citizens.

"Consistent design language" doesn't mean "behave exactly the same". That's exactly what Catalyst is for — to take iPad apps and make them good macOS citizens. Is that not exactly what you want? A consistent design language makes it easier for iPadOS apps to come to macOS via Catalyst without having to be almost completely restyled whilst also preserving everything makes the Mac a Mac. Your laptop remains a laptop. Your desktop remains a desktop. Ported apps respect the form factor, not force it to become a tablet.