The rear 'G' branding is absent from the prototype device, and the Google Pixel 6's rear camera design has been somewhat modified. It is available with a glass back and a new Black colour option. The graphic shows Android 13 and the device's codename, "cheetah" (Tiramisu). The vendor may be an OEM supplier of the Pixel 7 series, which is one explanation for this situation that is conceivable.
The excitement of getting an unannounced product, however, was short-lived when Google remotely erased the phone and removed the Android 13 upgrade. There won't be any assistance from Google because the Google Pixel 7 Pro is now stuck in the bootloader. After Google launches it this autumn, the phone may most likely get back to being useable.