If that is real, it clearly indicate warcrimes by Ukraine. Ratio of KiA to PoW’s for Russia is over 9 to 1. But for Ukraine it is over 57 to 1. And all that when Ukraine is the side which did the loud and rapid offensives meaning they advanced and Russians withdrawn which would cause more PoW’s be taken by UA.

For comparison, in the battle of Okinawa, one of the most brutal and merciless, where the Japanese got active orders to not surrender it was between 7 - 16 to 1.

This means UA is not taking/killing prisoners.