Questions related to BoundedRectRendering of QSGRenderNode

[JoRadio]

I have a few questions regarding the QSGRenderNode::BoundedRectRendering flag that I would like to ask：

1. Has the BoundedRectRendering flag been enabled for all QML official-provided controls? Is there any official control that would prevent the optimization of BoundedRectRendering？
2. Can controls requiring real-time position updates benefit from the optimization offered by BoundedRectRendering? If so, would the rect function's return value need to be updated in real time to achieve this?