What do you mean by "full adoption"? Russia allows Bitcoin investment and it can be used as a payment tool, it is a full adoption, isn't it? The Russian government is aware of the sanction from this war, they won't make a complicated regulation for Bitcoin and crypto. As it is one of the possible alternatives, they actually have fully adopted the Bitcoin/crypto. However, I don't think Russia can rely on Bitcoin or crypto to survive. They need other countries to help them, China or North Korea must help. But it may not be enough, Russia still needs other countries to support them.