With iOS 16, you can add widgets to your Lock Screen to get information at a glance — for example, the temperature, air quality, battery level, or upcoming calendar events.
How to add widgets to the Lock Screen
Touch and hold the Lock Screen until the Customize button appears, then tap Customize
Select Lock Screen
Tap Add Widgets
Tap or drag the widgets that you want to add to the Lock Screen
When you're finished, tap the Close button (x), then tap Done
If there's not enough room for a new widget, you can tap the Remove button (-) to remove a widget and make room for the one you want to add.