Disassembly of crashed Russian missiles in Ukraine show that they use multiple consumer-grade microcontrollers and DSPs. Western systems engineers would typically have opted for a single aerospace/defense-grade FPGA instead of having so many different chips and interconnects complicating the system.

Using Russia's approach you can easily stay many semiconductor manufacturing generations back. Using the Western approach you will prefer staying up to date so you can continue using the latest the latest proprietary manufacturer-supported FPGA tooling.