When comparing Ubuntu Server ARM vs Arch Linux ARM, the Slant community recommends Arch Linux ARM for most people. In the question“What are the best Linux distributions that run on ARM architecture?” Arch Linux ARM is ranked 1st while Ubuntu Server ARM is ranked 5th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Can be used without root supports easy proot and chroot mode lts support
The ubuntu system on arm devices is quite stable on android phones, works well if cpu is 64-bit ARMv8-A similar to raspberry pi. By default it has a gui gnome3 supports, also kde plasma 5 and kde plasma neon (wayland) for better use on touch screens.
Pro Simple to use
Pro Easy to use
Pro Configure how you want it
Cons
Con Restrict required packages to x86_64
Debian can install wine on ARM and qemu but Arch cannot.
Con Hard to use
Con Unstable
Arch's port is fairly immature and suffers some stability issues on many ARM platforms.
Con It does take about 30 min tops to know how to use if new to Linux
Con Spotty package ports
Some packages are updated regularly, but many get well out of sync with upstream and upstream Arch, leading to stability problems.