Quantum

Hello Michael. I’m not a physicist, so I don’t really understand the subject, so I’d be happy if you could correct me on what I’m wrong about the question.
So, from what I understand superposition is that light is not a particle but a wave. I didn’t understand why they say it is in superposition, that is, two places at the same time, because it is no longer a particle but a wave. What I mean is that the wave is in several points because it is not a point, it is not here and there because it does not have a specific place defined by the area in which it is located. So why do we say it is in superposition (that is, both here and there)?
Thank you very much.