'How can I autoplay a video (as Youtube does!)?

I know the Chrome policy about autoplaying videos: https://developer.chrome.com/blog/autoplay/

But Youtube auto plays a video when you enter a page, without interacting or clicking anything.

You load a Youtube video page, you see the ads (that actually are videos too), and after that you see the main video.

No clicking at all, no interaction even with mouse or keyboard.

Is Youtube overriding Chrome policy ?

How?!?!?!



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