In two weeks, Russia has already lost more soldiers than US lost in Afghanistan or Iraq over 20 years. The Russian loss rate is higher than US sustained during the worst weeks of Vietnam. This has to be an incredible shock to the Russian military. Putin has publicly denied that any conscripts are in the war but now that the dead and captured are turning out to be draftees, the military is admitting what Putin wont.
Unlike Afghanistan or Vietnam, millions of citizens of the invading nation share a long border and a language with the people being invaded. There's no way to effectively hide the nature or the scale of the losses from the population. Russian hospitals in the far west must be overwhelmed with casualties right now.
At present rates, the Russian army will lose cohesion fast. My assumption is that if Russia can't force a surrender or highly advantageous peace before Orthodox Easter, than Putin is out within the year. If Russian losses are so apparent that they can't be hidden during the annual May 9th Victory parade, Putin is out. Honestly, I think Putin has built a deathtrap for his dictatorship and then stepped right in it.