The "frosted glass" effect has been with us for quite some time with each company having its own name for it. In Nov 2020 Mike Malewicz wrote a medium article trying to unify it under one name. Then we created this handy CSS generator. Enjoy!
Generating CSS3 multilayer box-shadow has never been easier. Also if you are looking for inspiration or a starting point, it contains about 100+ predefined presets and hundreds of designs made by the community.