Probably the biggest issue I have with Linux altogether. As someone who has migrated several hundred people at a time for business, and several groups of people in a community to Linux, documentation along with the Linux Ecosystem is fragmented.
“Google-ing” a question, is a problem in and of itself. New users very rarely would enter “X Distro Documentation” in a search field. For someone who does not know how to ask the question, this leads you in to a rabbit hole you wish you never entered. Search results can bring up replies on mailing list, old forums post and guides dating back a decade two. this is VERY confusing.
One startling moment for me was hearing Things newbie say :
“I tried to follow the Ubuntu documentation for X application on Fedora but I couldn’t find the directory they referenced?”
“Hey! while the Arch documentation was very detailed, I couldn’t follow it for that Fedora you installed, I thought all Linux is Linux ?!”
"Where is their documentation?!"
I think distros shoulod package their documentation on the installer and have their search feature on their DE’s easily bring up their docs when needed by higlighting certain key words. i.e “kernel, boot, grub, packages, files, explorer etc.”
RHEL and Arch possibly naming the more niche distros like Gentoo and VOID would be ok, considering the install process.
Fedora ( very recently had a push to modernize their docs ),