Gradients have made a massive comeback in UI/UX and graphic design. Unlike the harsh, neon transitions of the 90s, today’s "original gradients" focus on:

They mimic lighting, making buttons look clickable and screens feel less static.

For developers to copy-paste linear or radial gradient code directly into their stylesheets. Staying "Original"

These are Photoshop-specific files that let you import the gradients directly into your preset panel. Sketch/Figma Palettes: Specific files for web design tools.