It's considered a positional stalemate, and that is politically advantageous for Russia. Both parties have been able to set up considerable defensive positions, making progress extremely costly. Both parties are still fighting for progress nonetheless, where Russia has the most trouble achieving it and Ukrainian forces are making small gains (field by field) on a consistent basis. But knowing that the frontlinie is many miles deep and there is intense trench warfare to make a few yards progress... There will be no swift or decisive victory on either side.

Putin has most of his followers convinced that he is fighting nato backed nazis. So even when Russian war tactics are brutally inefficient and the losses in personell and equipment are enormous, there is little internal political backlash. Internationally the conflict is seen as a regional dispute. Since Ukraine isn't a part of a large international alliance. Western sanctions on Russia aren't as impact full as they could have been.

It's looking likely that the war in Ukraine is going to last a very long time. With guerilla attacks on Russian territory becoming more likely and higher in frequency. Russia doesn't have the equipment left for large scale invasions, doesn't have the money to create meaningful reserves. And the kremlin needs defensive power in other places along its border.

European and western sentiment is that Putin will not stop until the old ussr borders are back under his control. And being securely and unquestionably positioned as world superpower.