If Russia will embrace Bitcoin, it will do more harm to Bitcoin than good. The world is "cancelling" Russia right now, there are many cases where anything associated with Russia gets boycotted, even if it isn't directly tied to Russia's war. If Bitcoin will be viewed as Russia's payment system, you can bet it will eventually get restricted in the West.
Instead of thinking "something bad in the world is an opportunity for Bitcoin", try thinking about how it can also harm Bitcoin, because such things could easily happen.