The iPhone 15 Pro had (has?) a known overheating issue. Apple reportedly solved the problem shortly after launch via a software update. But I own and use the iPhone 15 Pro, and overheating continues to be a problem for me. Maybe it’s now a more “normal” amount of heat, but it’s still an issue I experience to this day. Fortunately, rumors indicate Apple may have a fix on the way with the iPhone 16 and iPhone 16 Pro.