Window size setting maximizes the window on Wayland

In Ubuntu 24.04 Wayland, if the width and height of the window are set to be slightly smaller than the screen window when the window starts, the window will be automatically set to the maximized size.
Window {
    width: Screen.width - 300
    height: Screen.height - 300
    visible: true
    title: qsTr("Hello World")
}