Can I get the Apple Store

What happens when you tap the App Store app on the Home screen?

If you don't see the App Store app on the Home screen, use App Library to search the App Store app, see -> Organize the Home Screen and App Library on your iPhone

Organize the Home Screen and App Library on your iPhone - Apple Support           

• If you have find the App Store app, tap & hold on the app, then drag to the Home screen & drop it.