occlusion culling unity 2d

what is the best way to make a 2d occlusion culling in unity 2D?
with an explanation, please.

What exactly are you looking for?

Occluding layers that are offscreen?

Occluding graphics that are covered by other graphics?

Occluding enemies that are not within LOS? (That’s generally not called occluding, but I suppose it could be called that… it’s more LOS checking)

i want to render all game objects that are shown with a camera and disable all game objects that are not shown with a cam.
so when any disabled game object becomes enabled and rendered when my camera arrives to this game object position,