The expected suburban shift is counteracted by snowbirds moving in and the rural shift plus the black population shrinking faster than in any other state. It and Illinois tend to get too much hype from parties that are pretty much doomed with the difference between the two being that the ILDEMs suck and the SCREPs are amongst the better half of state Republican parties. They're well-organised and haven't left an opportunity for much "Brownbacking", as it were; the lack of upset potential has, in the long term, left the Democratic bench weaker here.
Joe Cunningham ran far ahead of Biden and would have won if not for the "D" next to his name. Once the state becomes a little more Dem-friendly, he can win statewide.