Hi, thanks for your feedback. it's weird that you had trouble installing it on a Quest 2, since I developed it on it, did you install it with "sidequest"?
I didn't model the city, it's a pack I bought on the "Synty Polygon" site.
Same for the VR player, it's a pack I bought that can also give you the locomotion system, "VR Interaction Framework" on the "unity asset store", but it's possible to create all that for free on unity. You've got plenty of tutorials on youtube from "Valem" and other youtubers who use Unity's "Xr interaction". If you have any other questions, don't hesitate ;).