Yeah, I mean anything is possible. I didn't even know they used different panels. I specifically crossed Samsung off my list because of their panel lottery within each model. I thought Sony didn't do it between sizes within the same model class.
I thought you asking about post-processing was the right question, though. Curious how much of that was turned off, game mode on, input renamed / changed to PC (if that matters on this TV), etc. In the end, it really may not matter. Like has been mentioned, they key is going to be real-world experience with the unit.