What methods and practices do you use to organize branch management between teams?

That's our internal feature stream setup, where we have teams, as they are getting ready to start work on new features, they will come to us and request a feature branch, and DevOps will go create that feature branch, set up their integration flows using the automated tools that we mentioned earlier, and they'll move into that. Once it's feature complete, we help them where needed to get back into our dev branches and repeat the process with teams as we go.