Much focus on the stats in the war tend to narrow in on Russian tanks but not always enough on their infrastructure and other artillery.
Now at least 300 Russian aircraft have been neutralized by Ukraine:
https://www.pravda.com.ua/eng/news/2023/03/3/7391809/
The hundreds of billions (if not trillions he is no longer the unofficial richest man in the world after this war surely Elon Musk is again) maybe Putin is burning through directly and indirectly is not sustainable.
These losses will chip away and cut him down. He won’t last the test of war.