Unlike China, it seems Russia has not focused on developing airborne EW assets. And, IMO, I doubt that they will “learn” anything from this conflict that will alter their decision-making. If Israel has long since learned the many lessons of their wars against Arab countries using Russian weapons and doctrines and Russia hasn’t, what’s to say that they ever will? Many folks have been complementing Russia’s ground war strategy and observing that they’ve used the same tactics since the Napoleonic Wars. Well, history is all nice and good, but warfare has evolved since then, and, if Russia’s aerial warfare strategies and tactics haven’t evolved since their first air war, they will, certainly, suffer ineffective sorties and unnecessary losses.