The fact the universe has laws of nature, is knowable, uniform and to a large extent predictable, amenable to scientific research, the laws of logic deduction and induction and is explicable in mathematical terms does nothing to prove Atheism nor Theism is correct as they both agree that all those things exist as well as both require they exist.
IMO what separates an Athiest from a Theist is what makes them similar to me. Both make claims neither can prove all while Theists go out of their way to spread the gospel (in faith) as Atheists just say no (like it's a drug).
I have no reason to believe that gods exist, because I have seen no evidence that would convince me. My position is reasonable, and I don't need to "prove" anything, since I am not making any positive claims.
I am also not making the claim that I know how the universe came to exist. Again, there is nothing for me to "prove". All I am doing is expressing my skepticism of the theist's unsupported claim, and pointing out the flaws in their arguments. Not the same thing at all.
I can be wrong but don't Athiest make the claim that there is no God, more specifically no intelligent design? If so, making a claim of any sort requires evidence. To my knowledge Athiest use certain aspects of existence as evidence there is no intelligent design (aka God). I take the position of (paraphrasing here) God? That sounds like a nice idea, I wasn't there when all this started so I can't prove for or against God. Now
that is not making any claims.
Generally atheists reject the evidence proffered as proof of god.
There is no objective evidence based proof of god, and there is also no objective evidence based disproof of god.
I can't prove Bigfoot does not exist, but I reject the amateurish 'evidence' for Bigfoot. As with god, there is a legion of Bigfoot believers.
Aspects are o reality are mot used as a disproof per se, tey are used to conter a claim by belivers.
My favorite, if reality was designed by a superbeing, spirit, god or entity of some kind he, she. pr it did a lousy job. Killer asteroids, plagues, earthquakes and so on. Theists couner with something like 'Everything happems for a reason dictated by god beyond our understnding', and the debate ensues.
Some atheists agressively claim god does not exist. I reject what is offered as evidence. Aheists are diverse and not monolithic.