Russia has many options that can be used to avoid sanctions. Using any payment method other than the dollar would be appropriate, and then we would find that local currencies or exchanges for oil/food would be more effective than the dollar.

Bitcoin may be an option, but I do not see that there is anything special about Bitcoin that will make the government adopt it.

The effect will be for individuals to buy Bitcoin, changes will happen, especially if governments decide to impose restrictions on deposit withdrawals or at least the currency depreciation.