Gone is the original iPhone 13 wallpaper (two light lines and two half ovals)

I recently bought an iPhone 13 regular not pro , and I wanted to put the original wallpaper iPhone 13 but they are nowhere to be found. I have searched in settings and on the internet but I can't find the information anywhere. My friends also have no original wallpaper iPhone 13 (they also have an iPhone 13) I reset and installed ios 17.6.1 twice and then I updated to 18.1 but I still haven't found them.