‘statusBarOrientation’ was deprecated in iOS 13.0 when attempting to get app orientation

Swift 5, iOS 13, but compatible with older versions of iOS:

extension UIWindow {
    static var isLandscape: Bool {
        if #available(iOS 13.0, *) {
            return UIApplication.shared.windows
                .first?
                .windowScene?
                .interfaceOrientation
                .isLandscape ?? false
        } else {
            return UIApplication.shared.statusBarOrientation.isLandscape
        }
    }
}

Usage:

if (UIWindow.isLandscape) {
    print("Landscape")
} else {
    print("Portrait")
}