Google supports the robots meta tag:
https://developers.google.com/search/reference/robots_meta_t...
They could easily add a noindex meta tag to unlisted YT videos and then have Google Search treat it like any other site.
https://developers.google.com/search/reference/robots_meta_t...
They could easily add a noindex meta tag to unlisted YT videos and then have Google Search treat it like any other site.
Imagine if Google say "if it links to a non-public YT video we'll delist it", that's just a weapon to get pages that take UGC delisted.