Component Lifecycle: Unmounting

It has no effect on cleanup functions
Cleanup functions only run when the component unmounts, regardless of dependencies
Cleanup functions run before every re-render if dependencies change, and when unmounting
When dependencies in a useEffect's dependency array change, React runs the cleanup function from the previous render before executing the effect again. Additionally, the cleanup function will run when the component unmounts. This ensures proper resource management when dependencies change and when the component is removed from the DOM.
Dependencies determine if the effect should run, but don't affect cleanup