AGNOSTICISM is about your HONEST perceptions and interpretations of your own experiences. If you cannot see beyond the horizon, you don’t pretend you do.
Of course, you can gather information from credible sources who have seen something beyond YOUR horizon, but that is tentative information that could be a basis for your belief(s).
No one credible to me has ANY information about Earth’s origins. We can only theorize based on patterns of evidence from various credible sources. Beyond that ...
If you are not agnostic, you are playing a make believe game. If so, you have faith in fantasy instead of reality, in my opinion.
Well, I am agnostic in that even if there were any gods, we would have no way to evaluate them or really know anything about them. And since no claims of gods that I have heard of are in the least convincing I do not believe any of them are true, making me also an atheist.
Note that I am not claiming that I know there aren’t any gods, only that I do not believe any do exist. You can reject a proposition without accepting its opposite.