There are regions that are hard core Democrat. Biden is an old school Democrat and a lot of Democrats feel comfortable with that. We went on a visit North and saw 1 Biden sign to 20 Trump signs. My daughter actually counted. We got closer to a liberal urban area enclave and it was all Biden signs. Not surprising. Not sure what area of FL you are in, but a friend from FL posted a video from his area and there were NO Biden signs to be seen.
Frankly had Biden run in 2016, as an old school democrat, he may have won. Trump now has a record to run on and in the end I believe Biden will lose because of that.