The more detailed the sculpt the more likely it was 3D sculpted. Clothing textures aren’t something we saw a lot of prior to 3D sculpting. Since it’s not something done by AI and still has that human hand touch in its creation, I think 3D sculpture has quickly become the preferred method these days. Not really sure there are any true telltale signs of a sculpt being digital or done by hand as given enough time any amazing sculpt could have been done by hand. We have many classic statues from the Renaissance that demonstrate that.