Every UTXO is also randomized as far as input selection and distribution and also the way they're labeled as they travel through the system. For the simplest ex

Every UTXO is also randomized as far as input selection and distribution and also the way they're labeled as they travel through the system. For the simplest example, reference early monero code (at the time BMR, and MRO) where Borromean Ring Signatures were used, where the same operation is performed multiple times per-input effectively mixing inputs at the atomic level, rather than in later iterations (RingCT, Arcturus, etc) that extended this further to obscure also the amounts of these inputs and to trim some of the inefficiencies of Borosigs.