We have some of the old (non-battery) Google Nest Outdoor Cameras (which are no longer being sold by Google) where I ran the cable through the wall of our garage by drilling a hole, feeding the cable through the wall, and then sealing the hole with caulk. I think the hole was a 7/8 inch hole; it had to be large enough to feed the USB plug on the cable through the wall, since the cable does not unplug from the camera. The cable is then secured to the studs on the inside of the garage, but you wouldn't want to do this inside a finished house.
I suppose you could do the same on a garage with the new (2021) Google Nest Camera Battery, where the optional power cable does unplug from the camera, but your hole through the wall would have to be large enough for the smaller plug that connects to the camera to fit through the wall.
None of that, I suppose, is of much help with the walls on a house.
The new Google Nest Floodlight Camera gets wired directly into an electrical outlet on the outside of your house or garage, just as a conventional floodlight fixture would.
