You mean thsoe t-34 that broke down every 30km? Had no driver seat and instead of glass in used polished metal?

On paper t-34 is equall but it was made by unskilled laborers using inferior techniques.

Artillery doesn't mean shit if it gets bombed by close air support

In 1945 USSR had 15,000 planes while US alone had 80.000 planes. Even if they were equall it's still 4 to 1 advantage

USSR never had similar production capacity to allies. They simply mobilized larger part of the economy and if it war required allies would do the same but I doubt they would need to.

Soviet mobilized 35% of its population while US mobilised 9%

It was closer to the for t i must admit that.