What is Apple's Haptic Touch and what can you do with it?

Apple introduced a pressure-sensitive technology back in 2015 called 3D Touch. But in 2018 the tech fell out of favour, and since then iPhone models have instead used something that Apple calls Haptic Touch.

Source : https://www.pocket-lint.com/phones/news/apple/149457-what-is-apples-haptic-touch-technology-how-does-it-work-and-what-can-you-do-with-it/