In terms of military theory, Ukraine is so far inside Russia's OODA loop that the Russians are combat ineffective on anything above the company level. Hit them head-on, and they can still fight. But that's why Ukraine generally isn't doing that.
Been saying this for almost a month now, but the lack of Russian armored counter attacks is a gigantic red flag to those rooting for a Russian victory. As this source rightly pointed out, these type of Ukrainian advances would be vulnerable to strong armored counter attacks. But the Russians simply aren't capable of mounting them.
It’s been almost entirely downhill for Russia militarily since HIMARS started taking out Russian ammo dumps, HQ, etc. Anything close to an even fight reveals the Russian military for what it is: corrupt and fake.
Ukraine has taken out A LOT of Russia’s armor. Also, recall how much was abandoned and broken down on the side of the road for minor reasons like flat tires, dead batteries, faulty spark plugs, etc.
Russian corruption is just as much responsible for this debacle as Ukrainian tactics are.