The Russians have another problem: the way they have been taking cities in Ukraine, based on lessons learned long ago in Chechnya, is to bombard the snot out of it, leveling it to the ground, and then occupying it. They cannot do this to Russian cities and they otherwise lack the vehicles to maneuver or around them or make rapid advances.
It’s kind of fun watching them flail around helplessly.
People are dying while the Russians and NATO test their weapon systems on Ukraine. There's nothing fun about that.