Moving from AngularJS to React is not the same either. Understanding the way that data moves through AngularJS does not map directly to the way that React moves

Moving from AngularJS to React is not the same either. Understanding the way that data moves through AngularJS does not map directly to the way that React moves data through the system or how AngularJS updates the DOM vs React and all the idiosyncrasies involved. Same is said for moving from Bootstrap to some other way of managing your styling. Different tools have different naming, different "class names", different "media queries", and different "tooling". I can't take my direct knowledge of Bootstrap 3 and use it in a styled-JSX world. Moving between frameworks is always going to be difficult and require rethinking how things are built.