LUTs on a computer can be used for film and photo emulation
Or appear more creative with colors and more. The technique is the same as the Cinema video process.
LUT is creativity. To make movies and photos look cooler. Like changing videos and photos with thriller video styles, brightness, pastel colors and more. So the choice of color is your freedom.
Supported Applications:

Premiere Pro
Photoshop
Davinci Resolve
Final Cut Pro
After Effects
Vegas Pro
Affinity Photos.