A slightly bigger bomb won't change anything materially on the ground in Gaza. The only significant change recently has been a cease fire. Whether it will hold or not is as yet unknown. But at least so far, Trump has somehow actually managed to be better on Gaza than Biden. Trump has shown a willingness to actually use the carrots and sticks of US foreign policy to produce outcomes. Biden offered unconditional support to Israel, while Trump seems to have forced them to come to the peace table by threatening to withhold support. In other words, Trump did what Biden's base had been begging him to do for a year.
It's possible all this falls apart. And it is possible that Trump will prove far worse, for example by allowing an annexation of the West Bank. But so far at least, Trump has actually been a lot better for the Palestinians than Biden. Biden and Harris fundamentally do not accept that Israel should ever be held accountable for anything.
I don't think Trump did the cease fire out of moral concerns; I'm sure it was purely self-serving on his part. But he was actually willing to use the US's various carrots and sticks to force through a cease fire agreement. That is something Biden never had the balls to do.