In addition to the home screen, you can also change the wallpaper of the lock screen on the Samsung device, which allows you to select not only one background image, but several images at once, so that a different image is displayed each time the screen is turned on.

In addition to the static wallpaper, a dynamic lock screen can also be set up, which provides different categories of background images that are automatically updated.

Android 10 (One UI 2.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Wallpaper
Step 3:  Choose between  My wallpapers ,  Gallery  and  Wallpaper services
Step 4:  Tap on desired  Wallpaper
Step 5:  Tap on  Lock screen
  1. Open the Settings
  2. Tap on Wallpaper
  3. Choose between My wallpapers, Gallery and Wallpaper services
  4. Tap on desired Wallpaper
  5. Tap on Lock screen

Samsung Instructions