Although I'm not a huge fan of old guard centrists like Biden, I will admit that he's been a decent president. While not enacting the kind of transformative change we need, he has been effective at making improvements to the law and advancing the interests of the people, in spite of pre-Civil War levels of partinsanship and fighting.
Internationally, he has handled the Ukrainian War pretty well by making the entire endeavor a joint NATO action from the very beginning. He's positioned the US as a member of a powerful alliance, rather than a bully that tries to dictate everything. He should have lifted restrictions on military aide earlier, etc., but mistakes are always going to be made in complex situations. His weakest point is Israel, but looking back I'm not sure what he could have done to stop the war. Netanyahu sees this war as the vehicle for his political survival and refuses to listen to reason. He's advanced a reasonable peace process multiple times and has even gotten Hamas on board (with a lot of help from Egypt, Qatar, and others, of course). In the end, he can't force Netanyahu to do the right thing.
And of course, it has to be said that the alternative is worse across the board on every single issue. We still have a need for the president that Obama looked like he was going to be before taking office, but it just isn't going to happen this time. Please just vote for Biden, especially if you live in a swing state. It's what's best for the country.