.@TeamYouTube I have a suggestion for a feature. The ability to use picture-in-picture on desktop to scroll through comments while still being able to see the video.
They had something similar working at some point last year (maybe 2017?) for a very short time. When watching a video, you could go back to browsing for more and the video would shrink to the corner and continue playing just like on Android. Then it went away a couple weeks later