Sharing service

Advanced mode lists WhatsApp, Messages, Reddit, X, email and copy to clipboard as separate rows. Only shares made through YouTube's own share button register here. That leaves a gap: a URL copied out of the address bar and pasted into a group chat, a Discord or a work channel shows up nowhere at all, so the totals sit below reality. Copy to clipboard topping the list is a decent hint that a video is travelling through private messages. Read the rows as a map of where your audience talks rather than as a count of views.