Put me in the camp that thinks it'll be closer than some expect. The two groups to watch out for:
- Totally-not-racist white former-GOP suburbrons whose worst nightmare is being called 'racist' but who still want GOP candidates/divided govt and who had an easy out voting for Perdue/Warnock in the runoff who can now continue to say they voted for "a black one" in a black-on-black contest
- Black men - who have been shifting away from Democrats at an alarming rate post-2014 - who when faced with the political psychology of two major black authority figures/tropes ("athlete" versus "preacher") choose the former because it's the more "masculine" option, and also don't have to make the "black versus white" decision in such a contest
The only prediction I'm willing to make right now is that GA's top-ticket races in the aggregate will be ~2 points to the right of the GCB margin.