Instead, Stalin wanted the Germans, French and British to spill copious amounts of blood to make all of Europe easy pickings for the Red Army.
It might have worked except for one thing, France falling pretty much without a fight which spared the British and German armies.
If you believe in patterns, this is exactly what Stalin did against Japan.
Look how the Soviet/Japan relations unfolded and then compare them with Germany and try to think what might have followed.
Vs Japan: a period of bad relations until 1939; then Japan starts moving towards a conflict with the Western powers; Stalin signs a non-agression pact with Japan in April 1941; then Japan attacks Pearl Harbor fights an exhausting war against US and Britain; then, when Japan was about to lose, Stalin attacks in Manchuria and install communist regimes in the Far East.
Now look at Germany: a period of bad relations until 1939; then, when Germany starts moving towards a conflict with the Western Powers, Stalin signs a non-agression pact with Germany; then Germany starts fighting an exhausting war against the Western Powers...
If we follow the pattern seen in the relationship with Japan, what was next?
And, btw, France fell quickly, thus the Wehrmacht was spared a bloodbath comparable to WW1, but the naval war in the Atlantic was no joke.
A naval war might be less bloody, but it consumes tremendous amounts of resources. Japan, after all, was defeated at sea. Let’s look at a single example what the Atlantic Battle meant for Germany: a Type VII Uboat cost as much as 35 Panther tanks. During the crucial years of the war against Soviet Union, Germany had about 200 Uboats at sea hunting British and American ships. If they did not have to built Uboats, the Germans could have increased the size of their tank forces by several thousand units during the key battles of Moscow, Stalingrad or Kursk. Just saying.
While it caused less casualties than the Eastern front, the war at sea and in the air against UK (and US) caused huge damage to the German economy, something which the Soviets never wanted to admit, with their constant complaints about “no second front” and how they were left to “fight alone” by the “nefarious capitalist vampires”.