Best programming practice

Hello, everyone, I need some advice from someone who knows about what’s going on inside the engine…
I understand that I have 2 or more ways to handle things :
I can create an element in the hierarchy, to play sounds ar particle effect and so one, but I can also add a component in the entity editor, to achieve the same goal. In the end, is there a difference in the game ressources and performances??? Thanks in advance…

If I understand you correctly, it are just two ways to achieve the same. (Adding a component on existing entity or creating an entity with a specific component). No difference in result.