What are the pros and cons of using the default Error object this way? If I can already use it like this, why should I create custom error object (class CustomError extends Error {...})?

import express from 'express';
const app = express();

// routes
app.get('/one', (req, res, next) => {
  const error = new Error();
  error.code = 400;
  error.message = 'Any error message for /one';
  next(error);
});

app.get('/two', (req, res, next) => {
// Async example
  setTimeout(() => {
    try {
      throw new Error();
    } catch (error) {
      error.code = 403;
      error.message = 'Any error message for /two';
      next(error);
    }
  }, 1000);
});

app.get('/three', (req, res, next) => {
  throw new Error('Random unexpected');
});

// error handling middlewares
app.use((error, req, res, next) => {
  console.log('ERROR LOGGER');
  console.log('Date: ', new Date(Date.now()).toLocaleString());
  console.log('Path: ', req.path);
  console.log('Status Code: ', error.code || 500);
  console.log('Message: ', error.message || 'internal server error');
  console.log('Error: ', error);
  next(error);
});
app.use((error, req, res, next) => {
  res.status(error.code || 500).json({ code: res.statusCode, message: error.message || 'internal server error' });
});

// Listen Port
app.listen(3000);

Responses and Logs:

/one

/two

/three