Also when using onSpatialEvent in the layer renderer, it seems to only catch pinch events. So for both CAMetalLayer and the Compositor layer it doesn't look like there's any way to do gaze-and-pinch. Is that right? If so, will this be able to pass review?

On CAMetalLayer, are there gaze events? Or do I only get this intersection point if I tap, hover or pinch? The reviewer seems to expect gaze-and-pinch to work, like I should be able to focus on items by looking at them. This was the rejection reason: "Bug description: your app was unresponsive to gaze and pinch gesture. "

Both. The game can be played either way by clicking a toggle.