You stole that question from the tip of my tongue.

So, as far as I concerned, Russia (you mean Russian government, right? Since Russia as its people is accepting crypto since the very inception of Bitcoin) may start accepting crypto... but it will be their very own crypto, centralized, emitted by the Central Bank and controlled by the oligarchs.

It is extremely unlikely, that the existing regime in Russiaa will allow any substantial use for any other monetary tool, other than the official RUB. It's simple heir way of management - total control.