You wouldn’t be able to see that debug information on the phone itself if it wasn’t jailbroken, as the GP mentioned you would need to use console on a Mac. The second screenshot is from a phone, ergo, jailbreak.
Also other commenters have mentioned he’s on 15.4.1. That’s two major iOS versions old. It’s possible they’re just on an iPhone 6S/SE/7 which was capped at that version, but a jailbreak is likely.
Also other commenters have mentioned he’s on 15.4.1. That’s two major iOS versions old. It’s possible they’re just on an iPhone 6S/SE/7 which was capped at that version, but a jailbreak is likely.