>>19907625Usually what makes people sick in vr is the world zooming around you while you stay still because it creates a missmatch between what you are seeing and what your inner ear feels. So when you are sitting or standing in one spot its not nearly as bad.
As for the endurance Gura has always been pretty fit even if she mentioned she is not as in shape as when she did that one ringfit stream a bit of dancing shouldn't leaver her gasping for air or anything.