Why do we use NgRx store in Angular?

And the cons?

In essence, learning NgRx is not very easy, but it is not as challenging as learning an entire new framework like Angular itself; and definitely worth the time invested in it . Once one of the concepts is mastered, the next is much easier to understand.2 May 2021

Ngrx is a group of Angular libraries for reactive extensions. Ngrx/Store implements the Redux pattern using the well-known RxJS observables of Angular 2. It provides several advantages by simplifying your application state to plain objects, enforcing unidirectional data flow, and more .