I think Al Jazeera is known to be critical of Israel right? And they have said that Hamas killed civilians in the October 2023 attack:

thousands witnessed a massacre at an Israeli music festival where Hamas fighters killed at least 260 people and took captives back into Gaza

Anyway, I hope Palestinians can live in peace without Israel murdering Palestinians, and without Israelis taking Palestinian land, etc. I hope everyone in that area can live in peace and with equal rights. I don't approve of any killings of civilians, whether it's by Hamas or Israel. Some people say "Israel has killed far more civilians than Hamas has, since October 2023", and yes that's very likely true, but that doesn't mean Hamas killed no civilians.