Difference between onUse Methods

[naive bramble]

Is there a practical difference between the following two methods on doing item onUse other than text size?

M1:

import { world } from "@minecraft/server"

const onUseComp = {
    onUse({ source, itemStack }) {
        world.sendMessage('Item used: ' + itemStack.typeId);
    }
}

world.beforeEvents.worldInitialize.subscribe(({ itemComponentRegistry }) => {
    itemComponentRegistry.registerCustomComponent('mc:on_use_component', onUseComp);
});

M2:

world.afterEvents.itemUse.subscribe(({itemStack, source: player}) => {
    if (itemStack?.typeId == "mvm:flare_thrown") {
        world.getDimension("overworld").playSound("firework.launch", player.location)
    }
})```

I've seen both sent around here and I'm curious about whether there is or isn't any practical difference between them

[steel pilot]

One doesnt need a guard clause since its registered on the item.

[naive bramble]

Uhhhhh I don't know like anything deep about script so can you translate that 😭

[steel pilot]

Custom components dont need
If(item id != your item) return;

[naive bramble]

Oooh sounds silly

Don't see how that could make a difference in most situations though