Polls are crap
It’s a little bit notable how they change over time, but mostly it is just a bunch of poor methodology noise
But, I do feel it’s relevant to point out that even in polling land Biden has been gaining for the last few weeks and it’s notable which media outlets are pretending it is the opposite of that (like severely the opposite) and to wonder why that is
Even if your presidential vote does not matter, you also vote for down ballot candidates. They are the ones that have the biggest influence on your life. Your state senator can write laws to protect you or harm you. Your town’s sheriff gets to decide if your local police officer should be fired and who should be hired instead.