I'm used to the camera purging all open apps from memory on my iPhone X, but iOS 13.2 goes above and beyond in killing background tasks. Earlier today, I was switching between a thread in Messages and a recipe in Safari and each app entirely refreshed every time I foregrounded it. This happens all the time throughout the system in iOS 13: Safari can't keep even a single tab open in the background, every app boots from scratch, and using iOS feels like it has regressed to the pre-multitasking days.