You can follow the steps given below to customize the Always-on display, after which your iPhone will show only the time and any other selected widgets on the Always-on display. Your wallpaper and notifications will not be visible to protect your privacy.
follow these steps
First of all, you have to go to the Settings option of the iPhone.
After this tap on Display and Brightness.
Then tap on Always On Display.
In this way the Always On Display will be turned on.
Note : If you have enabled power saving mode in the phone, then Always On Display will be disabled. In this case, you have to turn off the power saving mode to use the Always On Display.
Specifications of iPhone 14 Pro
iPhone 14 Pro 6.1 inch display is available. It has a peak brightness of 2000 nits. Also, this device has been introduced with the latest A16 bionic chipset. The iPhone 14 Pro has a 48MP camera with a quad core pixel sensor. It has 16 billion transistors and has been manufactured on 4nm process.