So Trump promised F-35s to Qatar and Turkey and they managed to strong arm hamas into releasing the hostages. But the rest of agreement will not happen. Basically no one in Israel believes in that, NO ONE. For Hamas it's too sweet of a deal to trap Israel again into bombing campaigns since its power comes from deaths of its own people ( specially on the international stage) and also the coming elections in Israel, Netanyahu will need to show that Hamas is going to be eradicated (and with hostages back, the "left" will not have any problems with that).
Hamas is an exception because it believes in martyr death and would drag the whole population in Gaza with them. That is new and unprecedented.
Most likely scenario is similar to Hizbollah in Lebanon. They didn't disarm as per agreement, hence no international aid flowing to Lebanon. Israel still controls South Lebanon and kills a couple of hizbollocks fighters on a daily basis.
The reality is that Israel always extended a hand which Palestinians or their representatives more or less cut off immediately.
We'll see how things go, both sides have made their fair share of mistakes thus far.