Poles were intent on killing Germans,
Oh yes no question the Poles who survived the initial Nazi/Russian invasion along those imprisoned in Siberia who subsequently joined the allies wanted revenge and had a true hatred of the enemy, as far as many polish soldiers were concerned their entire families had been liquidated by the germans / soviets, revenge was a high priority.
Germans would $hit themselves when they were captured by a Polish unit , they would beg to be handed over to the British or Americans.