I could see fluffies adopting the religion of their masters. I could see Muslim fluffies doing that, and I even wrote about a Fluffalo learning Hinduism from his owner.
@OtherCoraline Aside from humans, I think even Nature would be considered to be a distant and unknowable God, especially to feral fluffies. Its something I imagined regarding ferals, and one of the approaches I am tempted to go with if I continue my feral fluffy story. Much like how the Caveman developed animism and similar nature worship, I could see fluffies developing such. Perhaps even a Mother and Father Goddess, based off a particular fluffy matriarch or patriarch of a herd.
Also, and speaking of that superior species and humans, I mean, we do have the story of Prometheus and similar ancient astronaut stories. Maybe Man would prefer Sun worship or Nature worship over the ‘false god’ of the alien astronaut, if they existed. And perhaps some fluffies too might come to see Humans as a ‘false gods’.