How they're going to know that if a bitcoin address is from Russia or Belarus?
They obviously can't. The attempts we keep seeing on the internet is part of the big propaganda machine orchestrated by the tyrant regimes mostly in carrot countries trying to create the illusion that they have the supreme control on anything they want, including bitcoin transactions and hope that they can scare some kids away from bitcoin.
They seriously are misleading people with the power that they're trying to show. As if everything they see is controllable by them. These articles and news they make of tracking, it's fooling the non-technical people reading those materials.
China is now very cautious in its statements about Russia's military aggression against Ukraine. But he will also not go against the world community and provide support to the pariah country, into which Russia is now very quickly turning. At the same time, China will act in a way that will be beneficial to this country and at any moment can act to the detriment of Russia's interests.
As Russia is now becoming a very unreliable trading partner, only two of China's major banks are now allowed to transact with Russia, and then on a case-by-case basis with the permission of the country's top political leadership, and only in Chinese yuan.
Of course, cryptocurrency cannot save Russia from international sanctions. After all, sanctions concern not only the financial sector, but also the movement of goods.
It is because they also have their own battle that they're about to start but hopefully, they won't do that to Taiwan. That's why whatever Russia is doing, China is just going to spare them but I've read in the news that they've released a statement that Russia should mend to have it fix and have a peace talk with Ukraine.