Before my time but one of my favorite subjects for sure.
Draytini’s A Farewell to Weggies is a great (albeit unfinished) story that broaches the subject from a very sadbox POV that focuses more on the reality of what life would be like for a limbless fluff.
No Good Deed… by OtherCoraline which show both how traumatized a pillow truly is and how difficult it would be to get adopted.
Caring for a Pillowfluff was Wolfram’s well thought out guide where great attention to even the most minor of details was written out. To this day I use most of what he wrote as personal canon. He also did Spinel and I think A Day in the Life of a Pillowfluff hits home just how horrible it is for a fluffy to lose their legs and the kind of toll it takes on their psyche.