You likely have more than one Home screen. For example, I have one screen with individual icons for the apps I frequently use, a second screen with folders for an assortment of other apps, and a third screen for apps I’m currently using but haven’t yet organized. With IOS 18, I can tweak the settings to display only certain screens and reorder the ones I want to see.
Also: My 4 favorite iOS 18 features make the iPhone a lot better, and more fun
Again, press down on any empty area of the Home screen, select Edit, and choose Edit Pages. Tap the circle to check any page you wish to see. Tap the checkmark for any page you don’t want to see. To reorder the pages, just drag and drop them to new positions. Tap Done, and your phone will reflect the new layout of pages.
Source: Robotics - zdnet.com