Russia is experiencing heavy sanctions by EU and US, especially the SWIFT Ban from the EU is a hard one.
So what would happen if Russia went full adoption on BTC as this would be an unregulated alternative.
Bitcoin doesn't have anything to do with Russia currency for now. The issue is Swift ban and that has cut Russia off from access to cash this is part of the reason for rupees crashing. On bitcoin, if Russia goes full adoption on bitcoin, it won't change the fortune of Russian economy, it can only get bitcoin price going higher because whales will take opportunity for more investment.