Redux Toolkit is very impressive, especially with TypeScript. I'd agree that there was a lot of boilerplate in the before-times, but today, it's not "marginally less," it's significantly less boilerplate. The debugging tools are top notch as well, I can trace values and their changes pretty easily these days.
The main point of Redux is that it follows functional programming paradigms of immutable data, which makes reasoning about changes much easier. Compare that to the global state everywhere of signals/reactive/observables-based approaches like MobX or RxJS.
The main point of Redux is that it follows functional programming paradigms of immutable data, which makes reasoning about changes much easier. Compare that to the global state everywhere of signals/reactive/observables-based approaches like MobX or RxJS.