Does this bumper have fog light cutouts?

No. This cover ships as a solid panel. If your vehicle has factory fog lights, you'll need to cut the openings to match your setup or source a bumper with pre-drilled fog holes.

Will this fit over bumper sensors?

Yes, but you'll need to create an opening for any lower bumper sensors during installation. The solid FRP panel will need to be trimmed to clear sensor housings if present on your vehicle.

Should I paint this before or after installation?

Either approach works. Many installers bolt it on first to confirm fitment, then remove it for painting and final installation. The surface accepts automotive paint and clear coat without additional prep.