Hitboxes are so elemental to games that whether you're conscious of them or not, you're always playing around them, feeling out their shapes and the flexibility they offer. (PCGamer)

If you want to give an attack more “priority” you give it a bigger hitbox. This allows it to beat other moves with smaller hitboxes. (Gamecrate)

Why have we singled out first-person shooters for this feature? Because it’s the genre that contains the most varied hitboxes, and where hitboxes have the most tangible impact on the action. (gitconnected)