The in practice analysis seems to be that Biden’s calculating that Israel listening to US diplomacy is worth more than Israel being compelled by international force.
The behind the scenes negotiations the US has been pushing have seen hostage swaps along with concessions regarding the post war situation like Gaza being able to develop their natural resource economy.
Basically he’s using the public image of defending Israel to have more soft power since Israel’s response to international condemnations has been “fuck you I do what I want!” anyways.