is it a good practice to call a Lifecycle method inside another one ?

[sanba-anass]

onMounted(()=>{
let id = increment()
onBeforeUnmount(()=> {
console.log("destroyed")
clearInterval(id)
})
})

[WebMechanic]

onBeforeUnmount() would run anyway so there is no benefit in this arrangement other than creating a closure of id.
To access id make it part of your setup function.

let id;
onMounted(()=>{
  id = increment()
})
onBeforeUnmount(()=> {
   console.log("destroyed")
   clearInterval(id);
})