In terms of beliefs, I think there’s a tonne of massive, unanswered questions about the universe, and it’s certainly possible that there are forces out there that resemble spiritual concepts. Something vaguely resembling a soul, or an intelligent life that created the universe, that sort of thing. Or not - I have no real opinion on this other than “nobody knows”.
I do think that all popular religions on earth were created by people, though. Likely started similar to cults, and evolved into something much more loosely controlled. I don’t think they’re entirely negative, religion can be a powerful positive force for a lot of people, but I do think they’re just stories made by humans, for humans.