> USSR products often breathed a design language much closer to modularity, maintainability and repairability.
I think it’s just any old products are less intricate thus more repairable.
E.g. Nokia phones are more repairable than iPhones. Older laptops are more repairable/upgradable than say latest XPS or a MacBook where everything is soldered on. 195x Ford Mustang is more repairable than a new one full of electronics.