macOS style lacks DialogButtonBox implementation

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

ApplicationWindow {
    id: window
    title: qsTr("Hello World")
    width: 640
    height: 300
    visible: true

    Dialog {
        standardButtons: Dialog.Close | Dialog.Cancel | Dialog.Save
        visible: true
        anchors.centerIn: parent

        RowLayout {
            Button {
                text: "Cancel"
            }
            Button {
                text: "OK"
            }
        }
    }
}