Looking on the documentation of 3D collision,
Unity User Manual 2022.3(LTS)/Physics/Built-in 3D Physics/Collision/Introduction to collision
It is said that i can use compound colliders and that i should put the RigidBody on the root GameObject in the hierarchy, and so i created an enemy with a RigidBody on on the root GameObject in the hierarchy and a child GameObject with a BoxCollider for the body and another child GameObject with a BoxCollider for the head
But when i do a physics query like Physics.OverlapSphere, Physics.SphereCast or OnTriggerEnter all colliders are returned, is there a way to do a physics query that with compound colliders they all act as one collision?