This sound is tied to Counter-Strike: Global Offensive, Valve's competitive shooter released in 2012. Grenade audio from CS:GO became familiar through frag movies, YouTube edits, livestream clips and short gaming memes, where even tiny sound bites are enough to signal tactical chaos. Short grenade sounds stay popular because they are instantly recognizable to FPS players and fit cleanly into fast montage editing. They are commonly used beyond CS:GO too, especially in general shooter memes and reaction clips.