It's almost impossible for a president to be perfect, but given the hand he was dealt, Biden has been surprisingly good. When the history books are written, he will be seen in a much brighter light than today. He was given one of the weirdest economies a president has even been given and navigated it as well as you could really expect. Inflation has cooled. Wages are now outpacing inflation. Russia challenged the world order and got its ass kicked in by a small country that got send NATO's surplus weapons from the 80s; mostly behind Biden standing tall and rallying the alliance. American soft power is recovering, finally. The pandemic threw the entire world into chaos and the US is doing better than it probably should be.
In contrast, Obama will be seen in a more negative light because of how his healthcare plan is a huge handout to insurance companies and how his various actions degraded American soft power.
Trump will be seen in the same light, which is the worst president since at least Harding. When he stood there next to Putin in Helsinki acting like his little lapdog was the weakest the US president has looked since the country became a superpower. The absolute rock bottom of American soft power. Also, he tried to overthrow the government. Which nobody seems to want to hold him accountable for.