Ghost mannequin, without the mannequin.
The hollow-garment look the product page wants, generated from the flat-lay you already have, with no mannequin to buy and no retouching pass to pay for.
What it replaces
A mannequin, two shots and a compositing step, done per garment and redone whenever the garment changes.
Where it fits
Structured pieces where the shape is the point: shirts, knitwear, outerwear. It shows the cut without putting a person in the frame.
What it does not do
It does not invent a fit the garment does not have. The flat-lay is the reference, and a frame that flatters a shape the product has not got is a return waiting to happen.
Try it on one product first.
Install, pick your worst-photographed product, and judge the result before you pay anything.