Unfortunately, like the Ottawa Treaty on Landmines, countries at war are going to ditch their commitments to restrict inhumane weapons use at the first opportunity.

Ukraine already admitted to using indiscriminate killer drones in battle, which is a war crime, but no-one seems to care much.

It's going to be hard to make that argument when those for it can just say: "this helps to reduce the use of combatants, so it saves lives."

But there are efforts https://autonomousweapons.org/global-legal-framework-milestones/

The demonstrations, license, and funding come before any official NATO procurement order or actual combat deployment. Concerns about lethal autonomous weapons are being addressed by a UN expert group. Its recent report concluded that human judgment and control are required to comply with the laws of war; its recommendations will be reviewed in Geneva in November

Looks like they're going to look into this in November