In the old days, screen savers were essential features that showed slow animations to prevent those big cathode-ray tube (CRT) monitors from producing burn-in on the screen. However, once the liquid-crystal display (LCD) monitors took over, burn-in became a thing of the past, and so did most screen savers.
Although this feature is no longer essential for computers' normal operation, Windows 11 kept these retro screen savers around for times when you need to use a monitor that's still susceptible to burn-in or ghosting or if you simply want a cool animation to play while you're away from your computer.
