Why is the health code not displayed after it is added to the desktop?

The reason why the health code is added to the desktop is because the mobile phone system is set to be added to the App resource library. Add a health code to the desktop by following these steps:

1. Open the settings and click? Home screen? Enter the home screen settings page.

2. click? Add to home screen? You can add health codes to the desktop.

operating environment

Brand model: iPhone 13

System version: ios 15. 1. 1.