It is well known that the Putin Russia tank inventory has been stabbed into pieces at this point.
However per Newsweek they are now even cancelling the annual ‘War Olympics’ due to tank shortage:
https://www.newsweek.com/russia-cancels-international-army-games-tank-shortage-uk-1797252
The reason Putin is going mad now and targeting only civilians is because he is losing so much military assets.
Now is the time to really drive on with F-16 Fighter Jets specifically into remaining Russian tanks and speed up with training Ukrainian pilots to completion on them.