Maybe it's different from an outside point of view but most the people I know haven't seen any of the benefits of the economy getting better. Inflation, while not rising as much anymore, still has stretched a lot of people thin as prices never went back down and wages didn't rise to match. So people on the news say the economy is doing better and Biden is doing good but normal people are still having to spend more on essentials, having less to put away to savings than before. I definitely don't think Trump would do any better at this but I can see why people would check out because of that, it's yet another situation where both sides fail the people, which causes people to check out cause depending on your state having to take a day off work and stand in line for hours to vote for someone who will do not as bad as the other side is not appealing.

Another thing as well is that I think in general average Americans can only pay attention to something for so long (look at how we started completely ignoring COVID as soon as the vaccine came around even though it kept spiking repeatedly). So if there isn't some big draw like the attempt at student loan relief or roe v wade being overturned average people will stop caring and stop following politics. In general the message of vote for Democrats to stop bad things from happening has been starting to burn people out cause bad things have still been happening under Democrats, so they need to start actually pushing through good flashy policies like the student debt relief if they want to get these people to start caring again. (Also this is just all what I think from talking to people who aren't as interested in following politics as me. I still plan on voting for Biden even though I'm very progressive cause there isn't much other choice so I'm not advocating for not voting, just trying to reason why average people are checking out.)