IIRC, only 5,000 of the 100,000 Axis troops were ever seen again (and that was years later). Italians and Eastern European allies were involved alongside German troops.
In hindsight, people mocked Hitler’s invasion of the Soviet Union but they forget that Hitler was a soldier 25 years earlier when Russia surrendered to Germany. If Japan hadn’t maintained their ceasefire with the USSR, the Soviets wouldn’t have been able to send their eastern troops westward to save Moscow (and the whole western half of the USSR) and it might have ended differently...
If you read the EATG book, Paulus could have easily broken out of the siege at Stalingrad early on, but Hitler ordered him to stay put. Against his better judgement, Paulus did so because he felt his family was at risk if he disobeyed.
If Hitler had left the war to his generals, Germany might have won. More importantly, though, if two world wars had not curbed the population of Europe, they wouldn’t be slowly turning into Eurabia.
I still believe taking Moscow should have taken priority for it probably would have created a scenario where Stalin would have been deposed and the Soviet Leadership been fractured.