It was not more cramped than economy. I’ve been in a Concorde. Every seat was like domestic first class in the USA.

That doesn't at all match my experience.

I was fortunate to fly an Air France Concorde between JFK and CDG and, while the seats were leather (which was not the case in economy at the time), they were no larger than economy seats.

The windows were tiny and the cabin itself was also quite small. It definitely felt cramped.

“In a” Concorde or “flew” Concorde?

The ones at air shows felt more specious than the commercial ones. Or at least that’s how it was from my admittedly very limited first hand experience.

Ok I don’t know the origin of the one I was in. It is the one exhibited at the Museum of Flight by the Boeing campus in Tacoma, Washington.