How is useDeferredValue different from debouncing and throttling?

Direct answer

useDeferredValue deprioritizes rendering of a value with React's scheduler and has no fixed delay, while debouncing and throttling are time-based techniques that control how often work is triggered.

Technique	What it controls	Fixed time window?	Typical goal
useDeferredValue	Priority of rendering derived UI	No	Keep urgent UI responsive
Debounce	When an operation is invoked after activity stops	Usually yes	Reduce calls such as search requests
Throttle	Maximum invocation frequency	Usually yes	Limit high-frequency handlers

A deferred value may lag behind the current value while React renders the newer version in the background. It does not automatically reduce network requests.