Not sure how the title is misleading. It supports any git remote, but it has a few extra features (GH-style pull requests for example) that aren't really a part

Not sure how the title is misleading. It supports any git remote, but it has a few extra features (GH-style pull requests for example) that aren't really a part of Git. Those features are only possible on a GitHub or Bitbucket server, not just any git remote, but it currently only supports using them on the main public GitHub/Bitbucket servers.