Glassmorphism is a design style, coined by Michal Malewicz from Hype4.Academy to connect and combine all of the uses of the “frosted glass” effect in the UI. By categorizing it and giving it a common name, it became easier to find and learn about it from resources all around the web.
Paletton is not just a professional's tool, it was designed to help all sorts of color projects. When working with colors, it is important to do all you can do in order to match them up correctly. While most people struggle to do that stuff off the top of their heads, Paletton does the matching for you.