On what i share on LinkedIn: I used to be all in with just sharing updates about the company I worked for and found that I lost my audience entirely.
My strategy has now been to share company updates (minus Tier 1 launches) as examples of the product marketing or GTM strategy when I share professionally, but that the topic should be helpful to people in my field. Which helps with relationships, recruiting, and more.
Talking about a launch I am working on is only useful to my audience in the context of how to run a launch vs. me building an audience of people who want that product.
In my view, the Product Marketing function is there to help the people in the company use the best words. Not necessarily to be the one everyone looks to on social media for those words.