Scott Gilbertson details macOS Catalina and how in integrates iPad, while iPad fakes being a Mac.
It’s true that many of the things I love in the new MacOS actually rely heavily on the iPad and its software, but Apple has clearly spent considerable time reflecting on, and then refining, the MacOS experience. The outcome is smoother device syncing, the ability to run iPad apps on your desktop, and the ability to track screen time on your Mac just like you do on iOS devices.
Big update. Tread carefully.