First Page of Home Screen MISSING?

I’m using an iPhone 15 and I was making a new wallpaper and home screen. I’m having an issue where only one page of my Home Screen is available, the page that’s typically the second one you scroll to. The first page where everyone typically has all the important/default apps like settings, the App Store, photos etc. is GONE. I go to customize my Home Screen and I held down the three bottom dots, but the only available option was that one page! The second one where all my manually downloaded apps are. I tried turning my phone off and on but it’s still like this. I’m too lazy to have to manually search for my apps in the App Library- which is the only way I can get to my setting, photos, and mail etc.