willummount-hooks.tsx

import React, { useEffect } from 'react'

function WillUnmount() {
  useEffect(() => {
    console.log('Eu estou montado')
    return () => {
      console.log('Vou desmontar')
    }
  }, [])

  return (
    <>
      ...Content
    </>
  )

}

export default WillUnmount