Same as now.
I don’t worry about what it was like before I was born, and there were billions of years of that. The years all went by and it never bothered me. I’m expecting the same after I die.
If I was gonna pick a religion there’s a good dozen popular ones, and hundreds of niche ones. What would give me the slightest clue which one is right? They can’t all be.
So I drew the logical conclusion that they’re probably all wrong. Not just mostly wrong, with one correct one, but all wrong. It seemed sensible.