Ok, if I understand you right, there is a maximum FoV, the headset manufacturer allowes me to see. If my distance is too far from the lenses, the seen FoV can be smaller, but at a perfect distance, I see the maximum and I will not be able to see more, because it is no longer rendered on the panel itselve.
This means there is a perfect lens to eye distance and you will not be able to get more FoV, even, if you go closer to the lense....
If I understand that right, the G2 can only render a maximum FoV of 98° horizontal and 94° vertical and every youtuber talking about 110° with the G2 uses an older, wrong calibrated version of your tool?
Than I have to find a gasket, that makes it possible for me to view that maximum FoV and it makes no sense to get closer.