I was aware of certain German units who kept fighting because they didn’t trust surrendering to the Russians and kept working their way to US forces so they could surrender. They ultimately didn’t make, surrendered to the Russians where upon immediately executions happened and the remainder marched off the Russian camps where only 10% ever returned.
Read my post 18.
When Berlin was encircled (prior to the surrender) General Walther Wenck, with his 12th Army, was directed to break off from the Americans and attack the Soviets around Berlin. He attempted to do so, but was stopped short; at that point he started radioing to any who could hear that his army was waiting for them so they could escape to the west and surrender to the allies there. He held on for as long as possible, allowing between tens of thousands - possibly over a hundred thousand - including civilians - to surrender to the Americans instead of being captured by the Soviets. The description of the scene at the Elbe River is absolutely bizarre; the Germans were engaged in a fighting withdrawal against the Soviets, within view of the Americans - who are holding their fire as the Germans drop their rifles in the water to surrender on the American side. Wenck may have been the last one across.