Yes, PMM role varies a lot by industry and company. So you have to ask yourself what you want to do and what ultimately interest you. When you choose what companies, PMM groups to join, you need to evaluate whether that helps you get to where you want to be. For example, I am not into enterprise B2B. Product marketing in that space requires a lot more sales enablement work that I'm not passionate about. I've personally found the following background helpful to excel at product marketing: