I've learned from every game dev experience, and I happen to have gamasutra postmortems (a format I find highly useful for every project) for two of them: my second paid gamedev job and my most recent project (which is actually a licensed remake of my first gamedev job and on itch.io)
https://www.gamasutra.com/blogs/PhilChu/20121207/183083/Classic_Postmortem_Takin...
https://www.gamasutra.com/blogs/PhilChu/20150119/234416/HyperBowl_on_the_Small_S...