im not familiar with the Ruble, but by comparion it's not easy at all to get CNY/RMB for Bitcoin because of capital controls (which bitcoin falls under). their tiered permissioned system of capital controls where its easier for some and harder for others to move currency beyond phyical and digital borders works against the radical individual empowerment of bitcoin, hampering its adoption.

its hard to come to the conclusion that nationstate adoption is happening in the communist state when simple things like exchanging bitcoin for a Chinese bank transfer or Alipay/Wechat Pay haven't improved and arguably worse because of restrictions. the whole hat-on-head-take-selfie-for-kyc feels like a phenomenon that started in China during the heyday of p2p lending.

some countries hamper bitcoin adoption, most take a hands-off approach, and some embrace it. i tend to think a nation taking bitcoin seriously would actively embrace it in as many avenues as possible. If there was a leaderboard for "nation with most hostile acts against Bitcoin" China seems adamant in keeping that top spot

it is easier to get dollars for bitcoin than any other currency; there's no competition on that front. there's all sorts of flavors of digital dollars. its not hard to see which currency hampers bitcoin adoption and which one helps it along