I picked up my Model Y vin 193xxx on June 8th in Indianapolis, In. I didn't notice the PPF when I inspected the vehicle so they do blend in pretty well when the vehicle is clean. The comment by "sgalla04" was interesting as I thought at first perhaps my Y had been rejected by someone who had the PPF installed at time of delivery.
It must be true. I was at Costco today 6/23 and saw another new, still had temp plate, white MY just like mine and it also had the PPF installed on the rear door.