[steve1977]

Carbon is long deprecated and as mentioned was only ever meant as a transitional framework.

Cocoa still exists and is usable. UITouch is not a framework, but a class in UIKit. UIkit still exists and is usable. Same for Catalyst. Same for SwiftUI.

As said, I'm not pretending everything is sunshine and roses in Apple-Land. But at least Apple seems to mostly dogfood their own frameworks, which unfortunately doesn't seem to be the case anymore with Microsoft. WinUI 3 and WPF are supposed to be the "official" frameworks to use, but it seems Microsoft themselves are not using them consistently and they also don't seem to put a lot of resources behind them.

[pjmlp]

Win32, MFC, Windows Forms, and WPF also exist and are quite usable.

Apple also doesn't always uses their stuff as they are supposed to, Webviews are used in a few "native" apps, some macOS apps are actually iOS ones ported via Catalyst, which is the reason they feel strange, and many other stuff I could list.

Two measures, two weights.