I believe one day transactions between countries will use crypto, especially Bitcoin. But this is not the time, because there are still many who are unfamiliar with using crypto as a transaction tool.
bitcoin until now is still not fully functional according to the initial idea, this is constrained by state regulations and the current state and government attitude but at some point it will happen even though not with bitcoin maybe with other altcoins. considering that some countries have legalized it to be a transaction tool we just need to be patient for that