benspratling
macrumors 6502
Sure, they said you can just click the checkbox. But there have been huge rough edges, like nothing about collection views working without crashing, until beta 11. Document-based apps get a blank window behind the open dialog box, and the documentation for how to properly handle multi-screen displays or multiple windows is sparse. However, coding for UIKit is soooooo much easier than AppKit, that I'm able to re-build better interfaces with macCatalyst in a fraction of the time it took me to build my AppKit based app. Except pixel-aligned graphics, since the scaling factor from pixels on iOS to macOS is the ratio of two prime numbers.