It is on. Russia under the leadership of President Putin are aware of the sense of carnage coming for Putin.
This a good report:
https://www.pravda.com.ua/eng/news/2023/03/13/7393201/
The tank decimation and missile loss alone is huge. Not to mention the people loss and brain drain exodus from Russia.
If you don’t have smart people it will take longer to rebuild. Logic tells you that. You can’t break and then build anything again without smart people.
That’s why getting rid of Putin sooner in 2023 will speed up the process after years of restitution to Ukraine first.