I hate fantasy worldbuilding that has shallow interpretations and, like, clear delineations of "religion" vs. "magic" vs. "science" because that is not how any of those things work. That is not how people work.
Religion is magic is science, all of them interconnected, especially historically, and they should not be so clearly separated. The nebulousness of it is inherent.
I also have some issue with stories that make gods literal in the way that they completely undermine or misunderstand the concept of faith, and so many writers seem to think that people would not have faith without some kind of really definitive, like, "proof", which is (again) not how people work. And also isn't what faith is.
Genuinely the best story that actively confronts and understands this is Fullmetal Alchemist (I've only seem Brotherhood, I would like to read the manga). The Truth is Alchemy (read: magic) is Chemistry and Physics (read: science) is God (read: religion). These things are all tied together and cannot be separated cleanly, they are demonstrated to be cultural as well as practical through the alchemic practices and religions of Xing and Xerxes and Ishval.