It will be like last time. Trump is a President very few like to admit they like in public, but will vote for in private. There is no buzz on Biden. No one shows up at his outdoor rallies, 95% of trends he gets going are negative (health questions, various gaffs, etc....), anytime he's in the Twitter top 10, he's out of there quickly (Trump is there all day). Kamala is getting far more attention.
Also, the Latin vote is swinging more Trump, the months of democrats embracing the riots have hurt them bad. Also a lot more black males are digging Trump. Lots hate voting for an old White man, but Trump is seen as "realer".
As for the polls? Who gives a shit. Dewey Defeats Truman, Hilary defeats Donald, etc.....