The calendar was accidentally deleted from the screen on phone. It still exists, but need to restore to home screen
How do i restore the calendar to my home screen on iPhone 13???
iPhone 13
Use App Library to search the app you are looking for, see this Apple article:
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, tap & hold on the app, then drag to the Home screen & drop it.