Contacts created on the LG smartphone can also be deleted, no matter what account or location they are saved in, and in addition to deleting a single contact, multiple contacts can be deleted at the same time using multiple selection.

Android 9 | LG UX 9.0
Delete a contact -  Open the  Contacts -App
Delete a contact -  Tap on desired  Contact
Delete a contact -  Tap on  Delete
Delete a contact -  Confirm with  Delete
  1. Open the Contacts-App
  2. Tap on desired Contact
  3. Tap on Delete
  4. Confirm with Delete

LG Instructions