I’m gonna be honest, aside from the one ceasefire they had, I highly doubt Hamas has been able to continue to smuggle weapons across Egypt’s border.
Israel already makes it near impossible for actual aid trucks to get through, I wouldn’t be surprised if the entire border was being monitored by Mossad informants.
I think Hamas knew any negotiations would likely fail, so they really did prepare for a drawn out conflict by stockpiling resources and taking hostages to use as pressure.
Anything they have left is probably small arms and stuff they scavanged from Israeli troops.