Is there any resource (technical report, published paper) that could backup the assumption that objects in VR (particularly if developed in UE4 for Oculus Quest) are true to scale (i.e., a 1mx1m object at 2m distance looks just like a 1mx1m object at 2m distance)?
If you make your scene in 1:1 scale, it will appear smaller in VR (on HMDs with conventional FOV). You’d have to find a scale to make your scene to appear somewhat life-like in VR. I don’t think there is a hard number for that. Gotta experiment.