Maybe currently cryptocurrencies are prohibited in Russia, but it is normal for a country to ban cryptocurrencies because if cryptocurrencies are allowed in a country it will reduce that country's currency, but if that country makes an agreement with cryptocurrencies or a technology discussion, maybe the country This will allow crypto development in the country.
I think cryptocurrencies are good if they develop in countries because they have sophisticated technology and even transactions using crypto are very fast.
The Russian ruble is already one of the "leaders" in terms of depreciation in 2023, if I may say so. And this is not a manifestation of the influence of cryptocurrency, it is a matter of politics and psychiatry

But bans in Russia are of a completely different nature - it is an attempt to minimize the risks of financing the opposition, as well as stifling the financial freedoms of Russian citizens, because the state has built a purely totalitarian state of kleptomaniacs in power. Therefore, bans on any freedoms, including financial ones, have been, are and will be. At least the population will not be given the opportunity to be at least a little independent and uncontrolled by the state.
At the same time, for attempts to circumvent sanctions - yes, it may be used, but only at the level of the state, and only for the closest circle of the "club of kleptomaniacs"