Russia isn't struggling because of conscripts and untrained soldiers. Ukraine has conscription, and many of its TDF troops are relatively untrained. Russia is struggling because of a military philosophy that has lead to leadership failures from the officer level up to Putin himself. In addition to endemic corruption, the Russians also failed to remember things like rasputitsa, the principal of "economy of force", the importance of unit cohesion, of command centrality, of the 3:1 rule of thumb.

In other words, Russia created a military that was bad at being a military.

The only good thing that will come of this conflict is a revitalization in the study of military arts.