I'm an E5 iOS at a Big Tech company. I'm in the process of switching teams. While they're figuring out the paperwork, I've been invited to their roadmapping and architectural discussions.
The 2 E6s are dominating the discussions. The E6 iOS has been on the project since its inception a year ago and has all the context; the E6 backend has been helping out our team with the discussions and may eventually join our team. I'm the newest team member so I have the least context. The E6 backend's proposals usually sound like great ideas to me, but the E6 iOS often shoots them down and provides historical context on why those are bad ideas.
In my 1:1, my manager asked me why I'm not participating in the discussions. When I told him I don't have context, he told me to participate anyway. How do I participate effectively when I don't have context?