If Russian president Putin accept Bitcoin as a legal tender, i think it is because of the problem between Russia and Ukraine, because before now i over heard that Russian country ban Bitcoin before now, maybe from what I'm seeing the country have notice that Bitcoin is one of the options that will liberate them from this economic crisis's that is in line to affect both parties that is in battle line between Russia and Ukraine
The interests of the state and the interests of the people very often do not coincide. Bitcoin gives great freedom, and now the leadership does not have the ability to control cryptocurrencies, so Russia has the largest dark market in the world. But the most important thing is that no one forbids the use of cryptocurrencies, and the current prohibitions in the form of payment with cryptocurrencies for goods are not controlled. I very often meet on trading platforms the phrase that it is possible to pay in USDT 