The iOS 14.2 update for iPhone includes 117 new emoji, eight additional wallpapers, Shazam integration in the Control Center, a people detector in Magnifier, and other interesting features, but no software is perfect.
While it may be too late for you to revert to the last iOS 13 version, if the iOS 14.2 firmware is giving you problems or you're not just digging it, you can downgrade to iOS 14.1. Apple's iOS 14.0 update has come and gone, and now we're sitting on iOS 14.2, the latest version of the iPhone's operating system.