If you have a different model, you'll see the same Siri orb. After the first Apple Intelligence features arrived in iOS 18.1, iPadOS 18.1 and MacOS Sequoia 15.1, they weren't automatically turned on.
In iOS 18, apps can be positioned nearly anywhere. You no longer need to deal with a wallpaper image of your kids or pets being obscured by icons. They still adhere to a grid -- Apple isn't about ...