mail icon on screen
I CAN'T FIND MY MAIL ICON ON THE IPHONE 12 SCREEN ANYMORE
iPhone 12, iOS 15
Try this: Use App Library to search Mail app, 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 on the app (don’t open the app), then drag to the Home screen or Dock & drop it.