Tennessee, LSU, TCU supposedly use a VR product. I took a couple of swings and thought it was neat. The guy who showed me said it helps him a lot to pick up pitches.
https://winreality.com/?gad=1&gclid=Cj0KCQjwnMWkBhDLARIsAHBOftousZX3BurgaSV_N67ROCNJFRHTnGipPdQlfwK7lxxXjUei-uOCJ6saAo3mEALw_wcB