Would you then say that the wavelength is meaningful for the sound example as its properties are really of a wave propagating, and meaningless for the light as the wave analogy isn’t a full description of the light phenomenon behavior ?

I have pretty strong intuition for how "sound looks". I know how to imagine a wavelength of sound, how the medium works over time etc. I don't have the same intuition about light, as the sound analogy of a wavelength (distance between 2 peaks) clash with the part of photon that behaves like a particle.

From that standpoint I can confidently say that wavelength is meaningful for the sound example, but not so much for light. Someone more knowledgeable than me would probably offer better insight.