In the Samsung Flagship, your calls are stored in Samsung’s internal storage. You can access them via the phone app and the My Files app. However, if you want to delete them, you can do this by following these steps:
Open the application on your phone.
Choose three vertical dots.
Click on the setting.
Tap Record Calls.
Hit Recorded Calls.
Remember, This is not a permanent solution. Even after deletion, all the recordings will be available on the My Files app.