We cut the subject out and place it on clean white — the marketplace format.
A white background is a marketplace requirement and a document standard. This tool chains neural cutout and flood fill: a JPG with any background in — your product on white out.
Yes — that's exactly the format: subject on pure white (#FFFFFF).
Then no neural net is needed — we just flood the transparency with white.
No, shadows don't survive background removal. Add one in an editor if needed.