Microsoft used the hololens VR which is very much the equivalence making people wear a virtual reality headset that displays images in real time much like the Apple Vision.
I believe this augmentation system is different from IVAS, seeing those glasses that can be seen through it without any sort of magnification it is possible that framework will be UI based display. Similar to the MARS
So in that way Nausea cannot be caused Unlike the Hololens VR (IVAS) which has a magnification to it, that is the main culprit behind nausea and considering they have it as a flip down option instead of tightly fitting it onto the user which can contribute to nausea when the Headset might be uncomfortable and not sturdy