Why doesn't the scroll or scroll event of the mouse wheel fire?

Question

JavaScript

There is such a component, when trying to catch the scroll or mousewheel event, nothing happens. No reaction.
The content scrolls by screens at 100vh, maybe that's why the scroll event doesn't work, but it's not clear why the mousewheel doesn't work, maybe because of the FullPage.js plugin, but I'm not 100% sure. What else could be the problem?

class App extends React.Component {

  constructor() {
    super();

    this.scrollStopper = (e) => {
      
    }

    
  }

  componentDidMount() {
    window.addEventListener('mousewheel', function() {
      alert(1)
    })
  }


  render() {
    return (
      <main>
        <ReactFullpage
          render={({ state, fullpageApi }) => {
            return (
              <div id="fullpage-wrapper">
                <div></div>
              </div>
            );
          }}
        />
      </main>
    );
  }
}