Kartik S Vasudev has one example published here, on Google Flights.
Improving Product Sense · Travel & Hospitality · 4 phases
Making Flight Search Smarter and Less Stressful
A teardown of Google Flights across three search flows, plus how the product actually makes money
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.