Bah. Don’t believe those DNA things.
When they declare German Shepherds to be Molossars, like Bullmastiffs and the like, it’s complete full of it. Clearly Shepherds are not built at all like Mastiffs and Rotties and Bernards.
You can only guess, and all of us are fallible especially when it comes to mixes.
Look at my AST mix and you’ll see the DNA test is pretty ell proven through his conformation. Personality pretty well proves out too.