Understood -- assuming this scenario was possible with dbecommerce, would shipping defined for each variant be the right approach or if you were implementing it, would you consider a different approach?
While I understand this is a big ask and not something that will change soon, I figured it doesn't hurt to toss it into the backlog of suggestions. And if it is listed as a feature suggestion, at least it would align with your thoughts on how you would see the product evolve.