The key to largeco success is to understand that when you own a certain area, especially if it's an area that will generate opinions or a visibility boost, you will need to manage your full stack, not just the code you write. Code access, PR acceptability requirements, roadmap, triaged backlog, and communication upwards, downwards, and sideways.

If you're not doing that work, either someone else is going to do it or it'll cause issues down the road. Look at it this way: you can either be grateful that so many folks are wanting to help you in your effort and coordinate that effort, or you can stick to the code and complain that someone else is trying to steal your credit.

All of this hinges entirely on your direct manager (and to an extent their manager) being an actually good manager, and not a microcontroller, pass-the-buck-er, or an empty chair.