Yes, that ceasefire.

Trump was definitely part of that ceasefire, as evidenced by how Netanyahu rejected this exact same deal when Biden proposed it last time in May. If you have a plausible reason that he suddenly changed his mind from even a month earlier (where there were no mentions at all of a ceasefire) then let's hear it, otherwise Trump is the only explanation. We all hate the orange man here but objectively speaking Trump is a lot more plausible as a explanation than Biden's lackluster "negotiations" finally bearing fruit coincidentally right before Trump's inauguration.