Setting aside crackpot theories about what happened before the Big Bang:
Although we can state with confidence where our observable Universe came from, and explain the origin of a great many phenomena within it, the questions of where things like space, time, energy, or the laws of physics came from in the first place, or whether they even began at all, remain unanswered.
Despite all that we know, we can be certain that all we ever will know is finite. There are a finite number of particles, encoding a finite amount of information, that have existed for a finite amount of time within our visible Universe. While questions like why our Universe is filled with matter and not antimatter, why we have dark matter and dark energy, and why the constants of nature have the values they do may someday be answered, there is no guarantee that what remains in the Universe, today, gives us sufficient information to find the answers. Whether we’ll ever answer these questions remains unknown, but the instant we decide we can’t and give up the search, we’ll be right.Ethan Siegel, “Where did the Universe come from?” at Big Think (March 29, 2022)
One way of looking at it is that, if we are characters in the story, we can’t meet the author.
You may also wish to read: The trouble so many brilliant people have gone to in order to refute the Big Bang Overall, the anti-Big Bang quests tend to make one believe, if nothing else did, that there must be something in the Big Bang. A useful summary by Brian Miller.