Uninstall apps

On an iPhone with iOS 14, if the app is on a Home screen, touch and hold the app, tap Remove app and then tap Delete App (or tap Edit Home Screen in the pop up menu, tap the minus sign, then tap Delete App)

If the app is only in the App Library screen, touch and hold the app there and then tap Delete app.

Note that some built-in Apple apps cannot be deleted.

Also see: How to delete apps on your iPhone, iPad, and iPod touch - Apple Support

Turn off Screen Time, delete the app and then turn Screen Time back on.