I have never tried memory palaces, but I have always wondered if the application of automated memory palaces in VR would work and make the process more efficient.
it can certainly help. doing memory palaces with just your head, you're kinda stuck with being only able to store simple information. using VR, maybe I can embed videos/audio across my memory palaces, add portals to other memory palaces even. all of that in addition to making the creation and recall process very intuitive.