@Carlo91 - thank you for these details and they echo other comments we have been receiving as part of our exploration. You mentioned working with the IFC data in CesiumJS - would that include being able to turn on and off specific layers? Is there any interest in bringing the IFC data in other visualization engines that Cesium supports - Unity, Unreal or Omniverse?
Also, thank you for checking on the sample data, nothing compares to being able to dig a little into the actual files. More than happy to continue this conversation outside the forum via email.