Highly unlikely.
The capitalization of the entire
crypto market is too small for this. And it does not help them if they only accept crypto for 0.01% of their daily revenue.
Russia is not El Salvador. Consider the volume!
Now, even if they would do that (despite it not making any sense due to lack of liquidity) it would be extremely counterproductive for the crypto market (i.e. BTC): Such move will give the West a perfect argument to completely outlaw and ban crypto. Nobody will want to deal with a "pariah currency" and all these exchanges like
Binance, FTX
Kraken will fail overnight. The crypto market would be destroyed and Western governments had achieved with tye help of Russia which they would have never achieved without the Kremlin's help.
Always think twice what you wish for!