Putin has threatened so called unfriendly states to pay in rubles or have its gas supply shut off. It has said it doesn't buy things for free and so isn't going to charitable with its energy.
Europe has kicked against this with Germany saying its being blackmailed by this move. What other choice does Europe has with Russia alone selling about 40% of energy to the world.
The alternatives are in South America, through Brazil, Colombia and Venezuela, if you can buy it, the only thing is that the gas will be much more expensive, but there are alternatives, large gas pipelines can be built so that they can reach Europe much faster, that is an option because I do not see Europeans with gas cylinders on the streets, even more so when they are used to gas coming through their respective internal pipes.
The problem has worsened, but I think that both the USA and Europe began to impose very radical sanctions without taking into account the risks for themselves, the USA bowed its head against Venezuela and if Europe does not want to bow its head, it has to look for alternatives quickly.