Yes, you can. The documentation says:

OnEnable: Called when the object becomes enabled and active, always after Awake (on the same object) and before any Start.

and:

You can expect to receive the sceneLoaded notification after OnEnable but before Start for all objects in the scene.

This means, you can safeily assume sceneLoaded is called after all game objects' Awake(

For more, see the documentation about it.