Yes, NATO tactics haven’t been proven against a peer enemy, but I would argue neither did the Soviet tactics, this war can hardly be seen as a show of force over a “peer enemy”. And NATO advisors saying “if there is a minefield, go around it” if they are continuous for many miles is naive to say the least. But my armchair general spidy sense tells me the static nature of the battlefield and allowing the creation of these minefields are both a consequence of Soviet tactics, not the other way around.