Perhaps this is self-delusion on my part, but I've had no trouble integrating materialism/atheism with what you're describing — that kind of psychedelic panpsychism. They don't feel like competing claims.
I don't mean the usual anthropomorphic god. It's just that once you accept that consciousness is a fundamental property of the universe, it's not a big leap to think that it's god(not in the sense of "god, the creator", but in the sense of "god, the consciousness that is and that experiences the universe").
The big leap is that consciousness is a fundamental property of the universe.