I haven't kept up with it for the past year, but I know enough not to trust western headlines out right or sources that say Russia has twice the casualties. But also Putin has made plenty of missteps so far.
Ignore the lib map.
I am sorry to tell you this, but Putler has sent every Russian to die on the front lines at least thirteen times now. Yes, even women and children. Everyone has died so many times. Also, the whole of Russia has been bombed into a flat plain and then re-made into the old terrain by more bombings.
It really is mystery how Russia still controls all that ground in spite of all that.