Yes, in general, visibility through the rear window is maintained. The special perforated structure of the film allows you to see outside from the inside, while the design appears solid from the outside. This effect works especially well during daylight, as it is brighter outside than inside the vehicle.
Important to know: At night or when it is brighter inside than outside (e.g., due to interior lighting), visibility may be somewhat reduced. However, for normal road use, visibility is usually sufficient—especially when combined with the side mirrors.