Actually, I think the Russians have avoided deploying their Armatas or Su-57s in any meaningful capacity… so to some degree yes, but I don’t believe that they’d have any meaningful impact given the shift in military doctrine towards swarms of drones. Russia also hasn’t deployed their conventional ICBMs and scramjet missiles for obvious reasons (because a conventional ICBM strike is indistinguishable from a nuclear one).
Meanwhile, we’ve seen state-of-the-art tanks in the Challenger 2 and Leopard 2A4 achieve no success on the battlefield and the Patriot system incapable of intercepting drones hundreds of kilometers into Ukrainian territory. We’re yet to see how the F-16 will fare and probably won’t see F-16s in combat until mid-2024.
The most effective weapons in this conflict have been short-range guided munitions: HIMARS, Javelins, FABs, Lancets, Shaheds, FPV drones.