But it is necessary to do anyway? Just accept the losses and move on. Eventually solar will take over everywhere regardless of what anyone does, or doesn't. A few years of perturbations don't matter.
We can see though that it turned out to be worse for Russia than for Europe: they haven't found another export market when Europe declined imports, only other candidate is China but knowing they are the only ones, they demanded, and got, deep discounts. Pricing of "Power of Siberia" supplies is not public and it's been claimed that given transportation costs, it actually sells gas cheaper than Russian internal prices.
Also, Russian LNG will be let go of rather soon, this is in the upcoming sanctions package.