从一些旧的建议中，我提出了以下解决方案：

var isStageManager: Bool {
    guard UIDevice.current.userInterfaceIdiom == .pad,
          let sceneDelegate = UIApplication.shared.connectedScenes.first as? UIWindowScene,
          let screenHeight = sceneDelegate.windows.last?.screen.bounds.height,
          let windowHeight = sceneDelegate.windows.last?.bounds.height else {
        return false
    }
    return screenHeight > windowHeight
}

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似乎很有效。任何意见将不胜感激。