Not gonna comment on Ossoff's chances, but Ossoff lost me when he opposed raising taxes on the rich though. I understand that he was trying to appeal to some moderate Republicans, but I have to admit that it's a disappointment nonetheless especially considering when I supported (and still support) higher taxes on the rich.
Educated upscale Republicans aren't dumb either. They understand full well that voting for Ossoff is a vote for Pelosi's agenda even if he promises to them that he won't raise taxes on the wealthy. The same prevailing sentiment is here in my social circle as well.