Skybox Reflections on Quest

I’m working on a world with the option to change Skybox, and one thing I’m not clear on is if Quest supports Reflections

This is a sphere using Standard shader with Metallic and Smoothness both set to 1, giving the sphere a mirror finish.

First Question is if reflections like this work on Quest. Maybe I’m barking up a wrong tree.

Second Question is how should I go about changing the reflection map with Quest in mind? I’ve created a Reflection Probe in my scene, and set the type to realtime, and refresh via scripting. However I’m not 100% sure how that will go on Quest

using UdonSharp;
using UnityEngine;
using VRC.SDKBase;
using VRC.Udon;

public class SetLocalSkybox : UdonSharpBehaviour
{
	public Material m_NewSkybox;
	public ReflectionProbe skyReflectionProbe;
	public override void Interact() {
		RenderSettings.skybox = m_NewSkybox;
		if (skyReflectionProbe) {
			skyReflectionProbe.RenderProbe();
		}
	}
}

Maybe I need to create custom reflection cubes instead?

So, no idea yet if Quest supports these reflection maps or not yet,

but I did find out that if I set the Reflection Probe type to Custom, I get a button labeled “Bake”. If the Cubemap is empty, pressing Bake causes Unity to prompt for a filename, and huzzah its a new cubemap.