There are also rules about human shields which defines using human shields as "... intentional co-location of military objectives and civilians ...". Which Hamas has undeniably been doing.
The burden to keep civilians out of military targets falls to the governing authority, which is Hamas.
It is important to recognize, that all these rules around war are designed to protect some groups (civilians) while still allowing for military operations. The problem is, that if these rules were to prevent nations from pursuing military objectives, because the other party commits war crimes (such as using human shields) nobody would follow these laws.
For that reason civilians kind of loose most protections when used as human shields (§3). As well as proportionally laws taking effect, that permit civilian harm to an extend if it is necessary to pursue proportionally valuable military objectives.
THAT DOESN'T MEAN IT'S NOT BAD, just probably not illegal under international law. It is reasonable to demand change and to condemn Israel on moral grounds however.
Personally I also believe Israel needs to do some big changes in regards to settlements and humanitarian aid. But also the status quo needed to change. I don't understand Hamas' goal, they obviously will never win. Idk why they are refusing ceasefire agreements etc. I understand resentment against Israel, but let's be real, their negotiating power just becomes less and less.
And obviously everything needs to be investigated, but I don't know if any damming convictions actually come from this.