Depends on the implementation. It may turn out really well and handy, or may add more fuel to the pyre by increasing complexity even more. Now we not just entangled in our qubes, but also in groups of our qubes!
Maybe something like a suggestion algorithm that floats bruno-related stuff up in the menu (and menu opens suggestions by default, not the list of apps) based on what qubes you’re running or what qube window you are looking at at the moment. More sophisticated algorithm might even learn your app-starting habits.
It makes me wonder if something like this already exists. Maybe some sort of launcher, an alternative to xfce4-appfinder we have in XFCE? For example, allegedly ulauncher remembers your choices. An extensible launcher might even support qubes-specific search algorithm.
At least for the x-to-wayland migration era, after that it is a mystery.
One issue here is that people who use the Forum spend time, or have
spent time, on fiddling: what you nicely call “maintaining”. Nothing
wrong with that, I spend a lot of time doing it myself.
As a result there is a focus on that, and a conviction that that is the
way to go. Naturally. If you have struggled with something and worked
through it you tend to think that other people should do the same, even
when there is a simpler way.
3dd
But most ordinary users wont do that, and dont need to.
Qubes should be usable out of the box, and extendable in easy ways.
(Like setting up a VPN.) In my experience it is simple to provide Qubes
like that without a focus on implementation. I find that KDE allows
users to use that approach in Qubes - a custom menu that is use
focussed, not qubes focussed, use of Activities to enforce and visually
separate security domains, etc.
Support calls are no greater than with Windows or Mac with this
approach.
I never presume to speak for the Qubes team.
When I comment in the Forum I speak for myself.