Suppress/breach? Absolutely, both 105 and 125 will do. Better with smart HE.Can current 3rd gen tanks with 120/125mm cannons even reliable destroy such concrete buildings with HE lol?
Destroy? Highly inefficient, something much more massive is needed. And 'highly' means that something similar to AVRE shell is likely a starting point.
Also, I wouldn't call Eastern Europe especially strong. Any modern prefab reinforced construction is quite likely to be equally or more annoying.