Different Soviet fleet theatres needed different ship designs

Did the Soviet Union design ships differently for its separate Arctic, Baltic, Black Sea, and Pacific fleets?

It should have done so more consistently, but the necessary regional differences were not always implemented.

The question contrasts the Arctic and Black Sea as examples of the Soviet Union's geographically separated fleets. Those theatres should have generated different design considerations, but Soviet practice did not always implement the distinctions that geography called for. Standardized naval programmes therefore had to serve radically different climates, access routes, and operating environments. The result exposes the tension between common designs and regional operating needs.