I played some VR games like FlyInside and Google Earth VR in the Quest and was surprised by the quality. FlyInside is an flight sim where you really sitting in the cockpit. Most of buttons and handles are activated by touching with your virtual hands. Even sitting on a fixed chair, it feels very immersive to dive in a turn.
Flying in Google Earth VR is amazing. Search your home and fly around in 3D. Step in the 360 streetview and be really there.