Redux Toolkit vs React Context - When Granular Subscription Matters

Splitting the single Context into multiple smaller contexts changes nothing, since React always re-renders all consumers of any context in the tree regardless of structure.

Wrapping every consumer in useMemo will prevent Context re-renders because useMemo intercepts context propagation.

Migrating the frequently-changing state to Redux Toolkit and using useSelector allows components to subscribe to only the specific slice of state they read, skipping re-renders when unrelated fields change.

Increasing the Context Provider's key prop forces React to batch all consumer updates into a single re-render pass.