Angular 2 works fine out of the box, and already provides a good architecture that noobs struggle to come up with in "freestyle" solutions like React. Angular's bi-directional binding is way superior and simpler to use vs React's mono-directional binding: you can just use bound variables, no need to do complicated setState or use abominations like Redux. Vue also has bi-directional binding. Essentially there are many alternatives that are superior to React, which is where it is mostly because of fame and popularity.
You may of not used React in the past few years, but setState fell out of favor a while ago with the release of the useState hook and Redux (which I agree is an abomination) isn't necessary for 95% (imo) cases, again thanks to hooks.
For bound variables you can use MobX or signals in Preact.
The recommendation for React projects for the past few years has been to write everything using functional components vs the old class-based components. In function-based components, you can only use hooks so useState is that's why the parent comment is referring to.
