The good years for the Soviet Union were after 1945 and prior to 1973,
after it defeated 80-90% of Nazi military aggression and before start of the petrol dollar scheme.

But we can also fast forward towards a new wave of communism.
It's inevitable. The petrol dollar scheme only delayed it by a few decades and there's no more schemes to be had that would have the same impact.
LNG schemes, kidnapping Maduro, invading Iran, world tariffs, AI, none of it is going to help stop the resurgence.