My sister speaks fluent Russian and lived in St. Pete for 8 years. She laughed when she heard the "screaming Russian cosmonaut" and said it was a fake.
the “screaming Russian cosmonaut” I have never heard of before.
There is, however. a persistent (although much denied) account of a Russian cosmonaut who was stranded in orbit shouting for help until his oxygen ran out. That one I heard from someone years ago who was in a position to be “in the know.”