A British military analyst said to day that Putin is down to choosing between losing early and small or late and big. The tide of world opinion and action has swung almost completely to supporting Ukraine and the Russian population seems to be beginning to become restless with Putin.
In the meantime, Russian generals appear to have given up on a quick easy victory and the fierce resistance have convinced them that taking any of the major Ukrainian cities will be slow and costly, if it can be done at all. So they are resorting to bombarding the cities with aerial bombing, rockets and artillery from safe, low-casualty (for them) distances. The Ukrainian Turkey-sourced Bayraktar armed drones, anti-armour and anti-aircraft portable weapons have proven to be devastatingly effective. More and more of these are flooding in every day, and Poland is giving all 29 of it's Russian fighter jets to the US in exchange for equivalent NATO-compatible aircraft. The US will doubtless "lend" these to the Ukrainian air force who have been trained on them.