My son and I created a simple demo web app which uses WebXR on Chrome for Android plus the Unreal Engine Web Control API to control a CineCamera object using an Android phone - somewhat like the iOS only Unreal’s Remote 2 app. It’s a relatively simple demo, just wiring up example scripts to get something working, but it has the potential to be pretty useful for Virtual Production if anyone wants to help out. There’s also an example app which uses websockets running on the desktop to send LiveLink commands using the JSONLiveLink demo plugin.
Here’s a link to the project: https://github.com/russellbeattie/webxr-unreal-cinecam-control
And a quick video demo: https://www.youtube.com/watch?v=V6sECkur9ak