The option 'force_delete' => true is to delete the media file when removing it from the post meta (list images of image_advanced field). See my screen record for more information https://share.getcloudapp.com/v1u4Z8BD.
Actually, after deleting a post, the post meta is still stored in the database. So I think you should:
1. Delete the attachment (image).
2. Delete the post meta.