Of course, the further you go, the smaller the size, because the further you go, the smaller the stereo effect, which means the less volume you will see and perceive.
Therefore, when viewing at a distance of 1-3 feet, you see the maximum stereo effect, since the parallax for each of the eyes is maximum, and the object is not close enough.
As for viewing in a standing mode, in addition to the scale itself due to the lenses, the feeling of the height of the camera is added. For example, if the camera is located higher than my height + if I watch content while sitting in a chair, of course the model I’m looking at will seem short, since I’m used to seeing girls of a similar build at a different height. Also on the other side.