It's not so much that things are missing (although that too) it's that some choices are poor, some are duplicated, and there's no consistency and obvious "right way".

Do you use gnome-photos or shotwell, and does the system tell you how to use either? Do you use rythmbox or gnome-music - or for that matter, do you use KDE, xkcd, budgie, cinnamon or MATE?

Does the software installation show you how to install HAM-radio tools in the same UI as where you install Spotify or Chrome? Does changing the theme also change the terminal theme? Browser theme? Are useful tools like localsend included by default?

I haven't used Ubuntu "proper" in years, so all of my questions may be outdated, but Omakub certainly felt like a breath of fresh air when I tried it. It really felt like a big step forward for attention to detail compared to any other linux distro I have tried.

Not perfect by any means, but still, I think the "proper" distros should take some inspiration from it.