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.
Considering the fact that El Petro has failed, he has to think twice before launching a national crypto