Many projects, including smaller and newer projects, do not have any sort of explicit, formal governance. This is not always a problem, but it can be confusing to newcomers or even existing community members. It can also be a barrier to collaboration with potential partners who want to understand who they're dealing with and assess if they're reliable.
Signs that a project is running into this problem include:
The goal of determining your existing governance is not to map out how you would like your community to work. It's about writing down how your community currently functions. That said, if you are inspired by this process to make changes, that's great too!