Animal heads and other body parts used as headwear doesn’t necessarily relate to divine worship. I don’t think Meriwether Lewis worshipped a raccoon deity despite wearing a coonskin cap. (Curiously, despite the iconic image, there’s no hard evidence that Davy Crockett ever wore a coonskin cap.)
Similarly, animals have been used in art for thousands of years without religious symbology, so if there are cat or dog statues among Stygian decoration, that doesn’t prove they worshipped any god, Egyptian or otherwise, who was represented by that animal.