How to implement page transitions in React?

Question

React

In Maine:

class Main extends Component {
    render() {
        return (
            <div className="main">
    	        <Header />
        <Switch>
          <Route exact path='/' component={Home}/>
          <Route exact path='/example' component={Examlpe}/>
        </Switch>
            </div>
        );
    }
}

The Header contains a link:
<Link to='/example'>Text</Link>
When you click on it, the address changes, but the component does not.

Answer 1

should work, does the console write any errors?
Example?

Answer 2

And if Link is not wrapped in Route, will it work?