That's a shame that German tanks are so nerfed cause historically they are the bests"
100% false. At the first time the Germans encountered the T-34/76, a German commander called it the best tank he'd ever seen. It was faster, more heavily armored, and mounted a much larger gun than anything the Germans had at the time. They had to use Flak-88's or shortbarreled artillery aimed down in order to destroy it. Their tanks could not.
The upgunned PzIV was good, but no better t han the T-34/85. The Germans had a few 'special' tank designs that were great like the Tiger and Panther, but these were deployed in numbers too small to turn the tide of the war.
Germany having the best everything during the war is a myth.