Where did the universe come from? Atheistic origin science has no answer.

[Bucky Ball]

inflationary multiverse models still require a beginning.

There are a couple of mind boggling possibilities: (1) matter and energy have always existed; or (2) matter and energy suddenly sprung into existence. Both possibilities are hard to grasp if you really think about them.

But solving the problem by saying god did it just adds another mind boggling couple of possibilities: (1) god always existed; or (2) god suddenly sprung into existence. This problem is even more difficult than the one it intends to answer, because god as a fully formed creator must be much more complex that simple matter and energy.

Nor does answering any question with god did it, give us any useful information about how the universe or multi-verse works. Thus saddling us with unlikely complication to no purpose. Occams Razors suggests that we therefore leave god out of the equation.

Agree, but both are temporal concepts. Human brains are unable to think in terms without (space)time. What that is or might be is the same as flatlanders trying imagine 3 dimensions.
I'm not always a fan of "the razor". Some thing are very complex, They are as complex as they are. But if the "model" has no need for a god, and there is no evidence for one, then I agree, why introduce it.