Screenwriting : Any value to substack or medium or any of the other long form writing focused social media? by Zackary Goncz

I was curious, has anyone found any value to writing things for sites like substack or medium? Or any blogging type long form website, from a screenwriting perspective? I've seen people who are screenwriters, either with an IMDB or self-described, on those sites and I'm curious if anyone has found blogging to be beneficial to their screenwriting professionally. I'm wondering if, for those people, its a hobby or a side hustle or just another writing outlet, or if there is some way to utilize blogging to advance your screenwriting career, and how? Like, how would that lead to a job? Maybe networking or are producers DMing people, maybe it can just serve as a portfolio in some ways? Or, like I said, maybe its just people who like writing looking for any outlet and it doesn't directly impact the efforts to have a screenwriting career.