It was a very big mistake of many European countries to become dependent on Russian gas and oil. They cannot resign from importing overnight, but the European Union has already introduced laws reducing imports from Russia. Russia will be losing customers and shortly will no longer have enough income to cover the cost of the war. We also, can limit tax revenues from Russian casinos by boycotting them. It may not be much, but if we can help shorten this war, why not do this?
Maybe it was a mistake but for now, European countries still cannot escape Russia and try to comply with Russia's wishes if they still want to get gas and oil supplies from Russia. I'm not sure if Russia will lose customers and have no income to cover the costs of the war because, if I'm not mistaken, China will stay behind Russia and send food supplies to Russia. But whether it's true or not, I don't know. I think the climax phase of the Ukraine-Russia war is over and now it is likely to be a sloping phase and there could be peaceful consolidation after this.
I believe that's one factor that holding them up, the gas supply from Russia. Many are still depending on Russia and they have no other immediate alternatives for now. Hence, even if there are sanctions from other countries, the neighboring countries are mum about the situation. We don't know when will this be over but definitely, both economic status of these countries are in bad situation and they need long years to recover from the aftermath of war.