The closest thing we’ll get to that is in the polls over the next few days, and the moving forward to the election.
But even then, the numbers don’t have to move very much in order to make a difference. GA has 11 million people, and Biden won there last time by only 11k votes. Do you think a GA poll (much less a national poll) would pick up 11k people there changing their votes, or 22k people deciding to not vote at all (or vote for the brain worm guy instead)? That can all happen in the margins, outside of any ability for the rest of us to detect it.