Yes, I had them a couple of times.
There was a diner on route 51 possibly in Pleasant Hills, Brentwood or Baldwin that had them. Also my friend was a chef and if I recall he was working at a sports bar (possibly in Millvale?) that had them too- that one was my favorite. Unfortunately since it was over a decade ago- I can’t remember the names of these places. They are very similar to Hot Browns, but I’m not sure what the difference is.
(almost like trying to compare the difference between country fried steak and chicken fried steak)