Disable Chrome Autoplay

Videos on web pages that just start playing automatically is a bit annoying, but since I normally have my speakers muted, it doesn't overly bother me.  But when multiple tabs have multiple videos playing, consuming so much CPU that it starts to bog my system down, it was time for action.  Not limited to Mac, the Chrome browser's "Autoplay policy" flag can be set to several options, with "Document user activation is required" meaning "I got to click it to play it" being the most restrictive.  You get to that flag by entering "chrome://flags" as shown below.

http://osxdaily.com/2017/11/20/stop-autoplay-video-audio-chrome