Product-Market fit research to grow your startup - Are you running this?

I'm helping startups run research programs and the program in focus this week is Product-Market fit. Here's an article with a template anyone could plug and play. Would love your input on whether you run or have thought of running product-market fit research and if this is helpful. https://www.linkedin.com/pulse/using-product-market-fit-research-scale-your-startup-prachi-gupta/