It was always going to be mainly a software issue, wasn’t it?
I had the 15 Pro for a few days now and aside from initial setup, stress tests and fast charging, it doesn’t get noticeably warm. I don’t use Instagram or the other apps mentioned though, so of course these might be problematic. I feel like previous iPhones warmed up to similar temperatures when under these “stress” conditions.
I feel like this was one of these cases where some outlet reports about these “overheating” (a term widely misused) issues, then people reading that article start getting hypersensitive about it on their phones, so more articles get written and it goes on and on. In reality, things like fast charging (and MagSafe charging) always heated iPhones up a bit, and that only makes sense.
I’m not saying this is a non-issue entirely, but articles blaming the SoC (A17), the titanium frame or whatever without anything to back their claims up (because it’s just an article copied from some other “journalist”, who copied it themselves from somewhere else) instead of trying to figure out what the issue is need to stop. There should be articles written about how the quality control of big iOS releases has declined over the years instead.