Zucchini works differently in small and large pieces
The idea
The size of a zucchini piece changes how you experience its skin, center and seasoning. Smaller pieces distribute easily through a mixed dish; larger pieces let the vegetable remain more distinct. The cut is therefore part of the recipe, not just a cosmetic choice before cooking.
A practical next step
At home, keep the size consistent within one batch if you want pieces that finish at a similar point.