I think Putin is watching carefully because if it works then he will introduce a similar coin from Russia. Putin will support anything that will help to reduce the reliance of trade on the US dollar so it is all inter-related.
Although From what I know, Putin is quite conservative when it comes to.technology. He bans everything progressive, like Telegram for example. I think he might agree to launch crypto if it proves to be a means of pertaining power. Or making big money. But not for the country, for himself and all Russian millionaires.