The Allies, in particular the US and UK put their emphasis on mobile anti tank platforms like the M-10, M-36, M-10C, Archer, and Challenger, and Sherman Firefly.
The US 76mm M5 anti tank gun was IIRC used at battalion level and some were used during Bulge and at Bastogne but in general saw very little action.
Brits used 17lbr Pheasant guns in Tunisia but most saw very little action as towed guns mostly due to the mobile nature of the war.
IIRC UK used 6lbr in Sicily, Italy, and Normandie due to its ease of moving by crew but it was used mostly as infantry fire support for MG nest and bunker busting.
Soviets on the other hand made extensive use of anti tank guns. 76mm ZiS-3 and up to the late war 100mm M1944 BS-3.