Using CesiumJS 3D Map Web Application on Meta Quest 3 VR

I cannot answer the question, but would strongly suggest to keep that discussion in one thread. The one at Develop VR-Integrated Unreal 3D Map Application for Meta Quest 3 with Features similar to CesiumJS Web App seems to have a few more details, so it may make sense to continue there, unless there are very specific differences to be discussed (CesiumJS vs. Cesium For Unreal)