It's just my imagination https://developer.apple.com/documentation/uikit/uidevice/1620053-orientation?language=objc Seeing that orientation isn't deprecated here, in his UIKit in iOS16.0 he tried to change the internal implementation of UIDevice.orientaion to his UIWindowsScene's but failed and only the developer Doesn't it mean that the console log of [Orientation] .... was displayed as a warning? With iOS 16.1, the console display will also disappear, and I would like to wait and see how UIDevice.orientation works properly.

How about Release version? I do not have newer iPhone. I was encounterd this message in iOS16-iPhone14 Simulator on Xcode4.0 cantidate. but, I installed iPadOS16 Beta7 (20B5027f) into iPad mini5, UIDevice.orientaion was work well (The spinning animation was a little weird though).