This is very useful. I also agree that it's tough to capture insights because of the conflicting info in many places, from online to even in books and videos. Actively seeking out conflicting info and studying the sides is a good strategy.

Also like your view: "I switched my thinking to a purely "ROI" for the business, and I am convinced it's been a strong win-win. But you have to learn about the real, implicit and explicit, business objective, which is something 99% of devs do not really care (or need to, in this market)." I find this increasingly important, too, thank you.