How YouTube bypasses Autoplay Policy?

Question

YouTube

How YouTube bypasses Autoplay Policy? I understand that YouTube belongs to Google, but is this one hardwired into chrome? Yes, it is written there that sites fall into a trusted group if the user sits on them a lot, but chrome will launch a video on YouTube even clean.

Answer 1

How about this option?

btnPlay.onclick = function(){
    videoElement.play();
}
setTimeout(btnPlay.click, 2000);