I am using the Impulse theme..
I am working on a store for a client and on the home page there is a video that he wants to autoplay. I have gotten it to work on desktop with no issues.
Mobile is the issue...
It works on all the phones in my house and autoplays with no issues. But outside of my house it works for about 1/3 of the people who I have test it. So if I send it to a friend for some it autoplays for some it doesn't play at all.
Which leaves me to think it may be something non shopify related? Interested to hear shopify dev team's thoughts.