To be ultra confusion avoiding you don’t necessarily get great perf benefits from the merely organising things as per the ECS pattern. You still need to organis

To be ultra confusion avoiding you don’t necessarily get great perf benefits from the merely organising things as per the ECS pattern. You still need to organise your data around how it is used. Which is why Unity uses archetypes which trade fairly automatic organisation based on entities component signature for increased cost if you add and remove components from them (as it triggers reorganising where that entities components are stored). There are other patterns with different trade offs. In terms of just mental overhead any form of composition is useful be it Components in the Unity sense or Components and Systems in the ECS sense.