Fly is essentially the Google Earth VR experience for Meta Quest and Apple Vision Pro. - UploadVR

Fly is a standalone app for Meta Quest headsets and Apple Vision Pro, essentially providing a Google Earth VR experience without the need for a PC. It utilizes Google's Photorealistic 3D Tiles API for 3D terrain and buildings but offers slightly lower quality compared to the official Google Earth VR. Unlike Google Earth VR and EarthQuest, Fly lacks Google Street View functionality. For full details, visit the source at UploadVR.

Source: https://www.uploadvr.com/fly-google-earth-vr-meta-quest-apple-vision-pro/