I've gotten tired of having to go through the layers it takes to get to Device Manager so I can right-click and scan for hardware changes. I've tried making a shortcut to MMC.exe, the associated ...

With iOS 11, you can turn toggle the scan QR code feature on or off for the default camera app. iOS 12 brings another option with a Control Center shortcut.

On a device running iOS 15.4 or iPadOS 15.4, simply open the Notes app, tap the camera icon, tap "Scan Text," and tap the insert button once the text has been added to the note.