User experience (UX) is the most important part of any app. If a user finds an app difficult to use then it doesn’t matter how well it’s built or how good it looks – they won’t use it.
There are many areas within user experience, but the one we will focus on is micro interactions, which closely link to motion design and to the user interface (UI). Micro interactions are sometimes overlooked or viewed as a ‘nice to have’, however more and more people are seeing the benefits of spending time implementing them to enhance UX and better engage their end users.
https://www.marketingtechnews.net/news/2018/jul/02/how-enhance-your-ux-design-micro-interactions-guide/