WP-CLI

wp bb-media index [--restart] [--batch=200] [--hash] [--unattached]   # index every attachment's files (resumes)
wp bb-media scan                                                      # files in uploads no attachment owns
wp bb-media status                                                    # counts, queues, server checks
wp bb-media lookup <url-or-path>                                      # what the index knows about a file
wp bb-media verify [--fix]                                            # the index against the disk and the metadata
wp bb-media hash [--originals] [--limit=<n>] [--sleep=<ms>]           # SHA-1 for files that have none

wp bb-media usage [--restart]                                         # where files are used: full scan
wp bb-media unused [--files] [--live] [--older-than=30] [--format=table|csv|json|ids]
wp bb-media where <attachment-id|url>

wp bb-media regenerate [<id>...] [--missing] [--budget=20] [--sleep=0] [--dry-run]
wp bb-media optimize [<id>...] [--all] [--recompress [--include-smushed]] [--remove] [--budget=20] [--dry-run]

unused and where only read. optimize --remove deletes only the copies BB Media writes (name.ext.webp, name.ext.avif), and purges BB Cache afterwards.