main branches locally

Yeah, I'm in agreement with Wol here. A single branch on the fork to serve as a "baseline" is useful. Forges could have an option to sync it automatically (a button, automatic, or scheduled), but having it not-exist introduces questions of what it means when your last feature branch is merged and you delete it. Is the `HEAD` ref resynced to keep the repository alive? I'm just glad the option is there because I never liked forking causing content to be hosted under my handle (copying the `gh-pages` branch).

*My* pet peeve is using the upstream repository for any feature branches at all. Forges have finally gotten a clue and offered the "only copy the `HEAD` ref" trick, but I'd really rather *everyone* use their own fork for development (at least for projects with any kind of velocity…I have far more leeway for personal projects where cleanup was a feature branch or two a week). But fetching from GitLab's `origin` repository and having 100s of refs to update, prune, and manage is insane.