YouTube might change the web video player drastically, and users aren't thrilledYouTube is running a limited test that involves moving the video title and comments to the sidebar, and users aren't exactly thrilled.
Source: YouTube might change the web video player drastically, and users aren't thrilled (https://www.androidcentral.com/apps-software/youtube-might-change-the-location-of-video-titles-and-comments)