Each country has different legal regulations that regulate cryptocurrency users as a tool for investment and even make bitcoin a legal means of payment, but some countries regulate strict regulations for cryptocurrency or even prohibit it for any purpose of use. However, overall cryptocurrency developments are very positive because relatively all countries have made a positive approach to accepting bitcoin despite implementing strict restrictions so that it does not displace legal currency.
The government has considered regulations to give operational permits to exchanges that have relatively large volumes, they see the high tax revenue side of exchanges so they are implementing new regulations to allow crypto exchange operations even though the regulations are only to regulate asset exchanges and for investment, but this is only initial stage to grow more of the population using bitcoin globally.
It looks like there aren't that many nations who are totally against it, the only one that is sort of known is China, because they can't control it, but if what happened to Russia ends up happening to China (sanctions) then I bet that they will try to use crypto and will enjoy it as well.
I get that some people may not prefer that, like dictator in China would not want something like that and will try his hardest to get rid of sanctions, but meanwhile they have one they will use bitcoin without a doubt, to be fair they will do whatever in their power to not do that. That's what the Russia vs Ukraine war helped with the world, if it had any type of benefit at all, it was all showing the world we will not stand down if our enemies started to attack our friends.