Please try the below:
1. Swipe into the home page to open the application center on the mobile phone, long-press the corresponding app and select Uninstall. Alternatively, long-press the corresponding app, click on App info and Uninstall.
2. Alternatively, go to Settings Apps See all apps. Click on the app you want to uninstall, and then select Uninstall.
Note: - Some built-in apps don't support uninstallation. - Uninstalling the app will clear the app data; back up your data before uninstalling.