Violence in POW camps was generally down. Loyal Nazis celebrated national holidays at the same time Hitler was in Berlin. War news shocked them as the Allies and the Red Army advanced into Germany.
The Western Allies were overwhelmed by the number of surrendering Germans in late 1944 and early 1945. The POW system was completely overloaded, with too few guards and too little shelter and food. Many guards were brutal to the German POWs, often in retaliation for the German occupation of their home country.
The end of the war was distressing, but most POWs feared for their loved ones. Some Nazis committed suicide, either before the end of the war or on the day of the armistice.
When the war ended, the German POWs were shipped home — unless they were held by the Red Army. Germans were still being released from Soviet POW camps in 1955. Some probably were never released and spent their lives in captivity.
German POWs often remained defiant Nazis in captivity, but others were grateful for a hot meal and a warm place to sleep after the horrors of modern warfare. They were often abused for the Nazis' actions in combat and occupation. If they were lucky enough to make it to a POW Camp in North America, they could expect decent food and shelter and sometimes work release. These men only had to fear the hard line Nazis that would execute those they held as Allied collaborators.