This is just to demonstrate how unity's VFX graph can be used for standalone VR. I followed this tutorial to create the FX: https://www.youtube.com/watch?v=1BVRN_TP4m8&t=201s&ab_channel=GabrielAguiarProd.

This app doesn't get very good performance and has no other functionality other than a "hologram display" that scrolls across a terrain in a loop.