It is quite simple to add. Just add a sound notification when a new game has started, even if chosen to "silent".
In my case, I don't like to hear the sound of pieces being played, but in silent mode, a game is started and sometimes you are browsing other tabs waiting to a match seek to be accepted.
In my case, I don't like to hear the sound of pieces being played, but in silent mode, a game is started and sometimes you are browsing other tabs waiting to a match seek to be accepted.