During the last release cycle, we tried to push Darwin-related issues to @NixOS/darwin-maintainers if my memory serves well, and we didn't get a great success. Mainly, because I assume there's no one there in that group to care about Darwin from a release management process PoV.

I personally don't own Darwin and I prefer not dealing with it, doing decisionmaking on something you do not necessarily care about is not super easy in general so this has been a frustration for me, I think I was not alone given some revived discussions on Darwin support tiers.