export Switch (imported as Switch) was not found in react-router-dom. This problem comes from the router version. Please Check Router Version From package.json

"dependencies": {
    "@testing-library/jest-dom": "^5.16.2",
    "@testing-library/react": "^12.1.4",
    "@testing-library/user-event": "^13.5.0",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-router-dom": "^6.2.2",
    "react-scripts": "5.0.0",
    "web-vitals": "^2.1.4"
  },

If  "react-router-dom": "^6.2.2",

Then

Try it...

import {
  BrowserRouter,
  Routes,
  Route,
  Link,
  Outlet
} from "react-router-dom";

See Full Code here

import './App.css';

import {Login} from "./components/Login";
import {Profile} from "./components/Profile";
import {
  BrowserRouter,
  Routes,
  Route,
  Link,
  Outlet
} from "react-router-dom";

function App() {
  return (
    <div>
    <BrowserRouter>
    <Routes>
      <Route exact path="/" element={<Login/>}/>
      <Route exact path="/profile" element={<Profile/>}/>

    </Routes>
    </BrowserRouter>
    </div>
  );
}

export default App;