Toto I have been around QHs all my life. The gelding I posted about is a registered QH. I have his papers and he does HAVE big feet, hairy fetlocks and heavily muscled. He is 80% hancock bred. Looks like a belgian/QH to me.
I have a mare almost bred the same way but with Te N Te added she looks very drafty and is a pure bred QH.
Foundation QHs do not all look like little bulldogs. They don't all look the same. The ones I see bred in North and South Dakota look just like the OPs horse.
We will never know what they horses lineage is everyone is entitled to their opinion. Mine is that he is a QH. AND I am sticking to it. LOL Shalom