The second screenshot in the article..
https://lh3.googleusercontent.com/lwyOHmJjdMwWDtU8JlrFpMI9hv...
.. is an example of a new trend called 'Neumorphism'. A writeup on that: https://uxdesign.cc/neumorphism-in-user-interfaces-b47cef3bf...
More examples: https://dribbble.com/tags/neumorphism