The React state-management debate has produced more bad takes than any other frontend topic. "Just use Context." "Redux is dead." "Zustand for everything." "Jotai is the future." All four are partially right and partially dangerous, depending on what you're building.

So instead of arguing, I built the same shopping cart — derived totals, async fetch, localStorage persistence, three subscribing components — in all four libraries, and benchmarked it. This is the condensed version; the full guide (all four implementations with real code, the complete matrix, and the decision flow) is on my site 👇

Full guide: https://prepstack.co.in/blog/react-state-management-context-redux-toolkit-zustand-jotai-comparison-guide

The one benchmark that reframes everything

1,000 components subscribed to one store. Update one value. How many re-render?