I can totally confirm with my own experience with our rescue pit as well. He’s a good dog in the house and with our family, but he’s triggered so easily when out in our fenced yard by any other dogs out for a walk. Years ago we made so many attempts to acclimate him to other dogs through training, etc. and nothing worked. We can’t even walk him on a leash because he pulls so hard and chokes himself no matter what we do. But he’s happy to be a house/yard dog and feel like we’ve given him a good life.

He even has the same expression as the dino.

Look into Neuroplasticity.