Pretty sure I read that several of those counties also used the dominion software.....and of course there are lots of allegations of ballot harvesting.
Richard Baris the pollster who found over 10,000 dead people voted in Michigan in this election is looking at those who voted in Atlanta who have mover flags at the post office meaning they no longer reside there and thus cannot legally have voted there. Only about 20% of people who move bother to get mover flags at the post office so whatever number he finds, assume the real number of this kind of voter fraud is 5 times that.
A Twitter feed that suggests folks check past states of residence to see if they voted there in this election.
They may have used that software because it may have been part of the grants... the grands did provide equipment and training, etc, not just cash...