Russia old T72 tanks have no chance against western modern antitank missiles. The Ukraine army shoots them like chickens.
Now it’s time for Putin he must field T90 and Armata tanks.
T-90s of Russia's strongest units were also popped in the first week of war.
T-90 doesn't bring much on top of T-72 as a chassis, it's mostly new electronics, and a new turret + a better ERA.
LAWs cannot penetrate T-72 front anyways, so new ERA doesn't make much difference, but everything else is even more vulnerable to modern weapons.
Very few Russian tanks were lost to tank on tank combat, and those which were, were destroyed by 9k112 tank launched ATGMs, and possibly the new Ukrainian tank launchable Kombat ATGM