In my opinion, it creates a big problem for EU. If Russia cannot sell gas for EU, they will earn less money but they still sell it, for example, Asia nations. In the side of EU, they are meeting the seriously scarcity of gas and food. They choose to decrease the gas in the WINTER.
In what way did the EU choose to reduce gas in winter? because gas has become a staple now even though it can still be tricked not to use it, but some people are also lazy if they have to replace gas with other materials for their every need. Basically all countries need gas and if the EU no longer accepts gas sales from the Russian side, then the Russian side can still market it to other continents besides Europe. Because gas will not be a waste as long as everyone still really needs it in everyday life.
Even with the decrease in gas supplies or the interruption carried out by Russia under the pretext of maintenance work, Europe can survive the crisis during the winter with the help of the austerity measures that it has taken. But if the Russian supply stops completely, this will undoubtedly create a crisis. Yesterday, the G7 summit demanded the formation of a committee to determine the price of Russian gas, which Russia absolutely rejected, threatening to cut off gas supplies permanently if this happened. If Russia implements its threats, it will certainly cause a global crisis, including the insane rise in the price of gas from other producers due to the increased demand .