Re:Chrome exempts Google sites from user site data settings
by speedgoose on Sunday October 18, 2020 @04:11PM
(#24820730)
Chrome has some special logic about autoplay. The following page describes them, but I feel like it's a bit more complicated in more recent versions of Chrome.
https://developers.google.com/web/updates/2017/09/autoplay-p...
Web browsers are also capable of determining that autoplay on technically-not-load-but-automatic counts as autoplay. (There's even text in the spec about it.) In particular, they can tell whether it is in response to a user action/gesture on the site or not.