Looks like it was an F-35. https://m.economictimes.com/news/defence/iran-shoots-second-us-f-35-fighter-jet-says-pilot-survival-unlikely-israel-war-middle-east/articleshow/129994398.cms

This is not helping the marketing for it being a “next gen” and stealth aircraft.

I wonder if countries will use this as ammo to back out of F-35 orders