Duplicated: React Hooks: useEffect() is called twice even if an empty array is used as an argument

Remove <React.StrictMode> from index.js.

This code will be from this

root.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
);

to this

root.render(
    <App />
);

React StrictMode renders components twice on dev server