iPhone unlocks to some random app.
I've always thought this was a hardware or OS issue but I've just upgraded to an iPhone 16 from a 12 Mini and it's running iOS 18.0.1.
At random times, unlocking iPhone will open to some app that was not previously being used. I would think that any time you unlock the iPhone it would only ever open to the Home Screen. Are there times when this would not be the case? Why would my phone unlock to the Music app or Email app or Messages app when I have not used those apps for hours or days? All I'm doing is tapping the screen to wake it up and swiping up to unlock. There are no notifications on the screen.