This is a potentially distracting feature from watching videos.
YouTube mobile version will be able to react to videos in the form of emoji. But for now, this feature is not available on all channels and not for all users, but it will be implemented for both iOS and Android.
A total of 4 emojis will be available, the developers will implement the function as a panel in the viewport.
When clicked, the emoji will appear on the playback timeline. It is noted that until information is displayed which of the users left this or that reaction.
Experts call this feature potentially distracting from watching videos.