Why do I have to customize my Home Screen each time I ONLY want to change my Lock Screen?

Hi karamella162,

To make sure we're on the same page, you're presented with an option to customize your Home Screen when changing your Lock Screen but it is not mandatory. See "Personalize a new Lock Screen" in the article below, namely step 6.

• Create a custom iPhone Lock Screen - Apple Support

"Tap Add or Done, then tap Set as Wallpaper Pair or Customize Home Screen.

• Choose whether to use the wallpaper on both the Lock Screen and the Home Screen: Tap Set as Wallpaper Pair.
• Make further changes to the Home Screen: Tap Customize Home Screen. Tap a color to change the wallpaper color, tap  to use a custom photo, or select Blur to blur the wallpaper so the apps stand out."

If there's tweaks you'd like to make beyond that, we'd then recommend leaving feedback for Apple here:

• Feedback - iPhone - Apple

Cheers!

Are you asking about the wallpaper? If so, yes, they are now linked. You can let Apple know your thoughts about this here:

Product Feedback - Apple