if "omnipotent" doesn't mean "can do literally anything", then "real" doesn't necessarily mean "exists in our reality" either.
You can squirm and manipulate the terms however you'd like, just know that nobody in the right mind would take your words seriously if you do that. If a manual needs to be interpreted, it's a bad manual. Any religion is just a fiction, pretending to be non-fiction. Same kinda thing as horrors with "based on real events" tagline, just turned up a few notches.
If a fiction needs interpretation and head-canons to be coherent, it's a bad fiction. The Bible is just bad from a literary standpoint, fiction or non-fiction. Its authors failed miserably at portraying a being that is so potent, it created literally everything.