What is your process/workflow of getting info from the Product team?

First clarify your goals in terms of "getting info" for yourself so you can better frame for your PMs. For example, are you looking to be pulled into early validation of problem areas? Convey the value this provides them, such as allowing you to create more resonant messaging thanks to early and direct exposure. Do you want detail on committed ships? Show them the initial scaffolding of your GTM plan and gaps you need to fill in. After taking time to clarify your needs, and after getting to know your PM partners and their charters, understand their existing cadences for planning and development. As much as possible, be proactive and consume info from existing forums and meetings, they'll appreciate you doing your homework!