Maybe it's just you who gets nausea? Not everyone gets motion sickness so stop extrapolating your issues onto others. Also YOU please grow up and stop being lazy, it takes all of two seconds to see how wrong your lazy opinion is on Google and how many places are actively developing workplace and training and simulation vr, ar, xr solutions
It's a pure lottery and the chances depend on the number of petitions that year but historically for those without a master's degree or higher from a U.S. school, the chances of getting selected were around 30%. There are no per company quotas,
I think the best advice is to learn your own body. Sure there are similarities between everyone, but good caffeine habits are more important than the dosage.
VR tech is nauseating at best and normal screens can be tiresome for the eyes alone...
There is absolutely no upside of using a VR headset for work. Please grow up.