You could also view it as Israel started it while Biden was in office, and he got the violence cut by 3/4 in half a year.
This isn't Marvel superheroes kid. You don't get to just makes things up and say, "look how good they did maybe". While these death count trends can't be read in any of these ways, the basic fact remains: Biden pretend to work on a ceasefire, Trump got one rapidly. Now, even the ceasefire is largely bullshit, even that is more PR than reflective of on-the-ground reality, but that's the scraps that liberals were conned into accepting and the line that Biden wasn't willing to cross against Israel. The lie of Biden attempting a ceasefire is laid bare already, so you should know that him working to "cut" the deaths is fantastical nonsense, literally make-believe. Again, Biden was a staunch advocate for Israeli settler-colonialism and the ongoing occupation for decades and materially supported Israel in its genocide to the hilt. He was not "working against it, but not enough". He was working for it. He is a genocider. The guy you supported did a genocide and you still don't have humility about it.
It's time to drop the pretense that Biden just wasn't "good enough". He was a demon. The question is not how a good guy made a mistake, but how a bad guy conned you and how you're failing to cope with it.