X continues to bet on vertical video with its latest update
X’s new immersive video player is designed to offer a more mobile-friendly experience, optimized especially for portrait-oriented videos.
Vertical Video
Twitch starts testing vertical video streams
Twitch’s tests are not widespread at this point, as AppSensa’s research only found a handful of references in the app’s code that mentioned the tests would focus on just “a few streamers” for the time being.