Many things can be watched today from different perspective.
But we know the truth about nazi regime, "valliantly" supportred by wermacht.
Concentration camps, extermination policies, racial laws, of third reich policies.
On wemracht: For occupied territiories OKW order was, to shoot 100 local people for one dead german soldier, and 50 locals for one wounded german soldier. This policy was enforced in occupied countries to the letter, from september 1941 to the end of the war. Entire villages have beem burned and civilians killed under this order. (Or German soldiers, following the orders)
None of the allied countries fighting the germans had similar policy. And especially not in writing.
For soviet war effort, the help of western allies must be thoroghly historically researched to know the actual effect on a battle fields.
But, soviet production of for example t34 tanks, or katyusha launchers to me doesnt give an impression of peasent and farming country, during total military collapse, desperate for war materials. Quite the opposite. What soviet union needed was a second front on the west. And this was endlessly delayed, till invasion of Normandy in june 1944.
By the D day, battle of kursk was already won by august 1943, stallingrad won in februray 1943, moscow won january 1942, etc,... all major battles already won, by soviets before D day.
For another example, Anthony Beevor, in the book "Berlin: the downfall 1945", claim that entire soviet divisions, have been re-armed, rifles mosin nagant replaced by shpagin submachne guns, more suitable for urban warfare. To rearm the entire divisons (in another part of europe) is not a small industrial or logisitc effort. It is a big effort by industrial giant.
The highest concentration of artillery in history, ever, was actually soviet, on battle of berlin. Depending of source, 20-40.000 guns. (industry and logistic again)
Biggest tank battle ever in history, at Kursk, again, won by soviets - and they were using tanks, not slingshots, or pitchforks - which in fact means strong supporting industry to supply tanks, and other materials.
etc etc