All of Europe has long wanted to abandon Russian gas, so as not to be dependent on it. I think it will happen, but it takes time, at least to wait two winters. The nationalization of Gazprom's subsidiary, Gazprom Germania GmbH, will greatly help. The tanks of this company can be filled with gas supplied in the off-season from other countries in order to calmly survive the winter.
They really didn't expect it would bite back to them. If they planned to, they would have seen it coming which they have an alternative for heat during winter.
What they have plan was for Russia to stop drilling oil which is why they hype Greta Thunberg a lot for Climate Change. EU and US had actually been committed to this climate change but where do they get electricity? Obviously electricity still comes from Uranium, Coal and fossil fuel which anyone could actually figure, they are fooling themselves thinking Putin will actually stop digging oil because they say so.
It backfires and as matter of fact, Putin is now accused that he is conspiring with the Climate change movement where he funded so that US and EU will start using green energy all for Climate change.