No, it won’t re-render React.memo skips updates if props don’t change, even if the component's position in the tree visually shifts.

No re-render occurs Without props, memoized components remain stable and unaffected by parent re-renders unless their internal state or children change.

Yes, only the memoized child re-renders Updating local state inside a memoized component won’t trigger its parent to re-render, keeping performance efficient and isolated.