Ok. But @jongarvey is wrong to say that it is not a narrative. So to be plausible, it needs to be both reasonable and probable.
If I could prove that Genesis 2:4 was a colophon for 1:1-2:3 I’d be done, and I think it is. But you don’t accept that.
None-the-less, the account starts out with a time element, and main character, and a setting, “In the beginning…” and a main character “God” and a setting “over the face of the deep”. Compare to the Book of Ruth: “In the days when… a man… went to Moab…”
It’s a narrative story of God creating the heavens and the earth. Why do you protest? Do you think it is not the real story? Like it doesn’t match up to how the world really came into being?
I see that you are stuck between a rock and a hard place.
Option 1, if you admit that it is actually a story, then you feel like it’s not true, like it doesn’t match reality. So you would be stuck with @John_Harshman thinking that if Genesis 1 is an historical account, then it has no connection to reality.
So then, Option 2, you try to argue that Genesis 1 is not telling a story, or at least not trying to tell a real story. It’s just talking about purpose and function and theological connections, not material origins. Like many movies, it should come with a disclaimer: Any resemblance to actual events is purely coincidental. And since it doesn’t, you’re happy to provide it.
Option 3 is to see Genesis 1 as “based on real events”. But, in order to claim that “no animals were harmed in the making of this story”, you would have to be a Young Earth Creationist. But you reject that option.
Option 4 is to see Genesis 1 as “based on real events” and find a correlation between a scientific understanding of Earth’s history, and some kind of interpretation of Genesis 1. When science was very young, this could have been pretty easy, since there was not much science to disprove any particular interpretation of Genesis 1. Enter YEC. But science started coming up with lots of crazy ideas, many of which eventually proved to be false, as well as hanging onto lots of old false ideas such as “the physical universe is eternal and essentially static.” But it also started coming up with some pretty interesting ideas with a lot of data like “the Big Bang”. Then interpreters of Genesis 1 started getting their ideas kicked around by science. This started with YECs who got very defensive and decided to entrench which is Option 3 above. Of course, this all got very tiring and ego bruising, so many people jumped to either Option 1 or Option 2 above. So I get it. It’s hard work. And kind of scary. We’ve come through a tough time. There was a while when all the stories in the OT seemed like they might be made up. The archaeological data was sparse and not very supportive. But that has changed and is continuing to change. I think it’s going to be okay.