alt Hacker NewsThere are actually quite a few more documented incidents of POW abuse on the Ukrainian side than the one I linked to, but I think I would agree that there's probably more on the Russian side. I don't consider the amount of POW abuse on the Ukrainian side to be negligible though, nor would I expect it to be given how bitter this war is.
Yes, I'm sure it is not negligible, since it never is, even with the best-disciplined military. Adrenalin runs pretty high when people are trying their best to kill you and all your family, friends, and countrymen.
But we must also be sure to balance when a country such as Ukraine tries to uphold a moral standard as policy, and when they fail, prosecutes the offenders, vs a country like Russia which makes a standard practice of war crimes.