Incidentally, the last few times I've tried to go to Real Clear Politics to check polls, my computer tells me their security certificate is bad. I read up on it a bit, and it seems they've got a lot of pop-up scams. Weird.
Anyway, though you're right about the final AJC poll, it is...odd that these races all seem to follow the same pattern -- the polls favor the Democrat for quite awhile (the AJC poll from less than two weeks ago had Ossoff up by 7), only to see them close right before the election. And almost always with that final close in the direction of the Republican. Why would that be?
In any case, she won by 6%. That outperformed the final poll, which also seems to have been a commonality in a lot of these off elections.