The fact that they blocked observers, and then sent everybody home, and began counting again is a clear violation of election law, and more than enough proof of voter fraud.
That and the out-of-state votes. And the dead voters (10k in Michigan, I looked through the list myself). The drop boxes. The illegal harvesting. The unfolded "mailed-in" balots in Georgia. And on and on. What's quite obvious to me is voting machine algorithm claims, while also being easy to show they are wrong, are being used as a distraction from the actual fraud, which was massive.