Chrome won't autoplay videos having audio. Unless you've already interacted with the site.
Lynx :^)
w3m
Safari has it and is doing it much better, because it blocks both video and audio autoplay. I just tested it on Firefox 66 and I'm very disappointed. It blocks only audio and... it's broken anyway. On one page the first video was audio muted (great!), but then the second video came after the first one finished playing and it was suddenly unmuted! The tab was inactive and suddenly the sound came from it. Until fixed, I'm still going to use Safari for this solely reason.
Which site?
Generally this is good.
But I wonder, lets say you want to allow autoplay on Netflix. Do you need to enable it on all subdomains and CDNs - that could be tedious. (I don't know if Netflix has subdomains, CDN, just an example)
I think it doesn't matter where the media is but rather from what website it is played.