Automation, integration and premade scripts and GUI tools for the use of tools such as wine and other pain point relief software
Idiot proofing
Decrease choice fatigue by decreasing the number of choices visible by default as much as possible (Ubuntu is an okay example/starting point in my opinion)
Make a one-stop-shop wiki or equivalent with the specific purpose of giving explanations to non Linux-savvy people
I think that the proliferation of software/app centers is a great development when it comes to package management. Guides should mention them as an option to install whatever packages are needed, as a lot of people are clearly afraid of terminals.
Which leads to the “more GUI tools” point, which I’m sure everyone knows by now.
Also, you know how Windows update is so aggressive with getting you to update? That’s for a reason.