The Donbass portion of the Russo-Ukrainian war had a fewer belligerents, a lot lower population density, and was fought between conventional combatants. It was also over 6 years.

The Israel-Hamas war has more belligerents, over 50x population density, is fought between a conventional army and an insurgency who has specifically said that safety of the population isn't their problem, and is being run a lot faster than 6 years. Reported death rates have already slowed down a lot.

Also according to the UN: https://press.un.org/en/2022/sc14904.doc.htm 90% of war time casualties are civilians. The estimated 13k civilians killed in Gaza are weighed against an estimated 7k Hamas killed. That gives about a 2:1 ratio, much better than the global average.

War is always disgusting.