Actually he doesn't, he's just a goofy White German Shepherd. We got him in 2019 from a organization called Snow Capped Shepherd rescue, the rescue other dogs, but they specialize in the white shepherds. Here's some info about the white shepherds for anyone that's interested in learning about them.
https://animalcorner.org/dog-breeds/white-german-shepherd/
Many years ago I adopted a rescue white shepherd named Tripper. Only had him a week. He bonded with me instantly. No one could get near me. He final act that made me return him was my son, 2 at the time came running at me and the dog went for him. Fortunately, I had my hand on him and was able to grab his collar and stop him before he could get to my son. He sat behind me with his head on my shoulder as I headed to the rescue. Sure made it hard.