How does HarmonyOS System 3.0 close the featured application widget?

HarmonyOS system 3.0 is closed, and the featured application window is as follows.

1. Select the notification center option to enter the selection page of the mobile phone application interface.

2. On the notification center page, select the application to be notified, and turn off the switch after the page allows the notification message to close the application.

3. Return to the setting interface, click the application option, select the permission management option of the page, and select the floating window option under the permission.

4. Turn off the switch after the application that needs to display the floating window, thus turning off the application's permission to use the floating window.