GG is long-standing gaming slang for good game, exchanged by players at the end of competitive matches as a sign of respect, and it has carried naturally into streaming, clips and short-form edits. Short button-style sounds like this one are popular because they compress that whole closing moment into just over two seconds, making them easy to place at the end of a video without a long outro. Its appeal is practical as much as playful: viewers instantly understand that the match is over, whether the tone is gracious, relieved or teasing.