Correct. At least for how we (the Fedora CoreOS group) have been using the forum is for a mix of user support and some discussion about doing things a better way. Though, for dedicated discussion on topics about future direction of the project we’ve been using GitHub issues for that. So at least for us the distinction between #coreos and #coreos-wg would probably be more confusing than useful.
I speak only from my perspective. Other teams might prefer the other structure. Can we have a mixed approach?