For example, I’m using Debian, and I think we could learn a thing or two from Mint about how to make it “friendlier” for new users. I often see Mint recommended to new users, but rarely Debian, which has a goal to be “the universal operating system”.
I also think we could learn website design from… looks at notes …everyone else.
Arch could use better standard MAC security applied to systemd units like Debian does.
Arch could have an easy few clicks installer, something like a default modern setup.
Live kernel patching.
archinstall script worked good for me, i installed arch on 2 kvm yesterday, i just filled blank this script offers and everything was done without me, only one advice, include your users in sudoers file as script doesn’t do that automatically, also there’s gentooinstall script derived from archinstall one