In the latest IOS18.3.2... When I swipe up to app switcher and there are no apps open, my iPhone 16E just vibrates. It does not say "app switcher has no items" anymore. Is this a bug? Also, when I unlock my phone, it just vibrates. It used to play an unlock sound that kind of sounded like a camera plunk sound, but different. Is there a way I can get this sound back? My phone is not on mute or silent, the mute switch is turned off in control center.