As per Google, Every Chromebook runs on Chrome OS, which updates every six weeks to keep your device speedy, smart and secure. On the last day (15th August 2019), Google has updated the Chrome Operating System where Google is providing Better audio, camera, and notifications system.
The Authority has added New media controls make it easier for you to pause or play sound from a tab or an app. This change is very helpful for users. – Said by the official.
Starting this month, you can open your system menu and see all of the tabs or apps on your Chromebook that are playing audio tracks and control them from one place.