your golems are attacking my foxhounds from the quark mod, you are using other build in stuff from this mod, so I think I report it here, if it's not on your mod please send this to the quark team. I am using 1.16.4 and the newest version of both mods. the iron golem is fine with tamed foxhounds, they only attack untamed foxhounds as it should be.
if you want to test it, drink a fireresistance potion and give them coal.