Well, it exists. Some sects of Buddhism don’t consider the devas/asuras gods. Buddha himself went on to say divinity on its own shouldn’t inspire worship.

Judaism and Buddhism. They even have a name, “jubu”. Robert Downy Jr. of all people went into length on this.

What are the gods of Capitalism?

Yes.

What if no behavior is entailed and it’s just someone mentioning they have dual faith?

Which church do you go to?