Yes, a lot of designs were simply copied from western equivalents. But also a lot of designs weren't, or were actually improvements over western designs in some crucial ways(washing machines being overbuilt because repairs were unlikely, so certain components were upgraded to last longer). Soviets(and the rest of the Eastern block) had plenty of brilliant, incredibly skilled and competent engineers and designers and thinkers, and they all did the best with what they had access to. It's a topic worthy of tomes of literature.
The parent comentator has a valid point, the East usually copied good designs from the West.
Which they could improve.
Yep. The article even mentions that initial designs for some of these cameras were taken as war reparations in the aftermath of WWII. I suppose Leica might see that as theft, but it was hardly KGB espionage.
https://blogs.cisco.com/news/huawei-and-ciscos-source-code-c...
https://www.justice.gov/opa/pr/former-raytheon-engineer-sent...