^Yeah, it usually takes a while until the trends at the presidential level trickle down the ballot, but it does happen - and this is obviously going to be the case in places like suburban Atlanta as well. Just ask AR and WV Democrats if you want.
I mean, I see no reason why Romney-Clinton voters or those areas in general would be more inclined to vote for Trump in 2020 than they were in 2016.
FWIW, GA-06 is a demographically similar area, and Ossoff was able to close the gap, obviously it wasn't enough and Dems shouldn't necessarily rely on this group, that being said, it did trend more D.