From community trawling (Reddit, Printables comments, and Discord history), “those sets” usually refers to compilation packs of print-ready 3D models. Examples include:
In many cases, Peach shared teaser images or screenshots of the printed sets, captioned “Will upload these later” — but later never came. AMS Peach Can You Upload Those Sets Pls If ...
In online communities (file-sharing, design, 3D modeling, or music production forums), users often request specific “sets” (e.g., texture sets, preset packs, sample packs, or resource collections) from a creator known as AMS Peach. The request is usually phrased politely but urgently: “Can you upload those sets, please, if possible.” Logging: