When I open the News section in Plex on my Android phone, it immediately starts playing the first video in the list.
This is one of the most annoying and unwelcome "features" of any video streaming website. Yahoo does it too, and I have raked them over the coals for it, to no avail.
Please do not ever add a feature that auto-starts video on a user's device without the user's explicit consent!
There must be an option to enable auto-play, and its default setting should be Off.