By definition questions that are on topic are these:
Using and administering official Ubuntu flavors including: Edubuntu, Ubuntu GNOME, Kubuntu, Ubuntu Kylin, Lubuntu, Mythbuntu, Ubuntu Studio, Xubuntu, Ubuntu MATE, Ubuntu Touch, and Ubuntu "Snappy" Core.
Running third-party applications on Ubuntu.
Development on Ubuntu. Services provided by Ubuntu and Canonical. Any question not mentioned below or here are great!
Where does GRUB fit in under these requirements ? Technically it's not Running . . . on Ubuntu
it loads before the OS itself. In one of Oli's answers, he mentions :
[Questions] how it's installed (and how it boots) are not Ubuntu proper and are off-topic.
And yet, we have GRUB tags and tons of questions related to those. My understanding is that since GRUB comes with Ubuntu by default, it is therefore on topic here. It's also something that can be configured/controlled from Ubuntu. Config files for GRUB are also part of the root filesystem , particularly those in /etc
.
NOTE: I'm seeking clarification that draws on at least semi official sources and/or previous meta posts, preferably by our current moderators. In other words, I don't want opinions but facts here