Open the Files app
Tap Browse
Tap Downloads under Locations or On My iPhone
Open the Safari app
Tap the Downloads icon in the top-right corner
Check downloaded files in the list
Open the App Store app
Tap your profile icon
Check app download progress under Updates or Purchased
Open the Photos app
Check downloaded images and videos in Recents
Open the Music app
Check downloaded songs in your Library
Open the TV app or Apple Books app
Check downloaded content in the Downloads section