I can't speak about fake noses, but from testing with lots of people, VR sickness is generally dependent on your subject and their brain's ability to handle bei

I can't speak about fake noses, but from testing with lots of people, VR sickness is generally dependent on your subject and their brain's ability to handle being tossed around between realities. Personally, whenever there is no floor, I get sick fairly quickly. I assume because my mind expects a floor to be there when I look down. Not looking down when I know there is no floor usually helps. Worst case is when the floor is at the level of my knees/stomach, that's an instant VR ending for me. Oddly enough, there are rare exceptions, such as with Cosmic Sugar, I was able to "ignore" my sickness and play around for ~30 minutes, but returning to the normal world, I remained slightly dizzy and felt "off" for the next couple days. The worst offender is when objects fly into my body or head (or as happens with lots of the shitty shovelware indie games which launch you into walls/mountains). After such incidents, I usually need a break between 15 minutes and a full day before I can go back inside. I doubt adding a virtual nose would fix either of those issues i.e. where the mind isn't able to process what it is seeing.