No, while Russia had a period of War Communism after the revolution, where money was effectively abolished after it had been devalued, a form of wage labor in the state industries persisted, and did throughout the entirety of the Soviet Union’s existence — you still sold your labor for a wage, only the state was your employer, not a capitalist. Similarly, workers in China were provided a wage as they are today.
Slave labor is not the alternative to wage slavery, free labor is. This means free associations of producers owning socially the inputs and outputs of their labor.