Sashirekha Mishra has one example published here, submitted for Improving Product Sense.
Improving Product Sense · Productivity
Adding a Dark Mode Toggle for Comfortable Nighttime App Use
A small, fully scoped dark mode spec: the toggle, the persistence, the known edge case, and the metrics
Read a few side by side
The fastest way to build product sense from this library is to compare two people who took the same product somewhere different.