theres a wiki page on combat losses which gives a breakdown from multiple sources although it is a little out of date. unfortunately the (reasonably) exact number is probs only really known by Russian AF Command.
Not a single death on either side of the Ukraine war, has been necessary. They've only been unavoidable due to the murderous delusions of a single damaged man.
The whole thing is a pointless waste of human life and earthly resources.
And while there's an argument to be made that some of casualties of the war are deserved... A war where the fates of figters are determined by little more than random chance, isn't justice.
As a westerner i simply cannot fathom laying down my life for a maniac leader. When my manager at work asks me to code something i don't want to do i tell him to fek off. Why do these russian idiots carry on