The lock screen features a camera icon for quick access to photography, but if it's not your preference, you can disable it.
To disable the external camera icon on the lock screen of Samsung J7 Prime, follow these steps:
Step 1: Navigate to the 'Settings' menu.

Step 2:

Step 3: Select 'Shortcut info and apps.'

Step 4: Opt for 'App shortcuts.'

Step 5: Choose 'Right-side shortcuts.'

Step 6: Choose 'Enable' to turn it off.

That's it, you've successfully disabled the camera icon on the lock screen. Best of luck to you all!
See also:
>>> How to set up fingerprint unlock on Samsung Galaxy J7 Prime
>>> How to enable notification reminders on Samsung J7 Prime