https://asiatimes.com/2022/05/ukraine-war-momentum-shifting-in-russias-favor/

"Likewise, those who say the tank is obsolete are contradicted by footage from Mariupol that shows how devastatingly effective direct fire from Russian tanks – boasting optical sights, powerful guns and heavy frontal armor – was at obliterating defensive positions in buildings.

"And ongoing developments suggest Russian commanders have learned from errors made in the war’s earlier phases."