Israel has always conditioned the return of the hostages by Hamas with "We get to keep killing 'Hamas' if we want to after the deal." Which is not a ceasefire.
You can't tell the side you're negotiating with to give you what you want and offer nothing, that's not how negotiation works. Hamas has offered the return of the hostages at every negotiation, it's literally the only leverage they have.
Every interview with doctors working there I've seen they just look like they haven't slept in weeks and are permanently on the edge of weeping.
I can't imagine the pressure and trauma they're having to deal with constantly. No supplies, limited staff, under threat of bombs and execution squads, a constant stream of horrifically mutiliated men, women and children coming into your care where there is no hope of being able to help everyone.