Clicky switches are a bit more niche but enjoyed by some enthusiasts as they offer a satisfying and distinct click that lets you know when a key's been registered. Tactile switches are versatile and popular among typists and gamers, while linear are fast and most popular for gaming.
Many different kinds of switches are available, each offering its own typing sensations and sounds, but most switches fall into one of three categories: linear, clicky, or tactile. The mechanical switches they use to register keypresses are what sets these keyboards apart. Mechanical keyboards have exploded in popularity.