Forced to deploy infantry without armor support in Kharkiv Oblast, Russian commanders sacrificed hundreds of soldiers in open-field assaults against well-prepared Ukrainian positions with FPV drones.
Russia wouldn't admit defeat even if Zelensky was giving interviews on the Red Square right now. The only way they stop is if their government ceases to exist and the propaganda falls silent.
Historically speaking this is kind of the problem with fighting Russia. You can kill so many more of them than they kill of you and then they just keep coming.
They are also extremely competent in turning conquered populations into meat squads. With centuries of experience. Which should terrify anyone sitting on the far side of conquered countries.