How to remove an app that is locked on to device that is not a mandatory app

Response to danknugsog … Remove Apps

Do any of the following:

• Remove an app from the Home Screen: Touch and hold the app on the Home Screen, tap Remove App, then tap Remove from Home Screen to keep it in App Library, or tap Delete App to delete it from iPad.
• Delete an app from App Library and Home Screen: Touch and hold the app in App Library, tap Delete App, then tap Delete. (See Find your apps in App Library on iPad.)

If you change your mind, you can redownload apps you’ve deleted.

You may also remove apps by : touch & hold any blank space on your Home Screen until the icons begin to jiggle , then tap the ➖sign for the ones that you want to delete , tap the screen again to make it stop jigging .

If none of what SteelCityAnne suggested works, go to Settings>Screen Time>Content & Privacy Restrictions>iTunes & App Store Purchases>Deleting Apps and make sure it is set to "Allow".