When comparing Trisquel GNU/Linux vs Artix Linux, the Slant community recommends Artix Linux for most people. In the question“What are the best Linux distributions for desktops?” Artix Linux is ranked 7th while Trisquel GNU/Linux is ranked 29th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Polished look and feel
Fresh installation looks great.
Pro Reliable and working great out-of-the-box
It works on many machines. Really good.
Pro Good but not so good
There's been a lot of effort put in this project through the years, there is no question about it. It's 100% free and it's very user-friendly, but it being based on Ubuntu 16.04 isn't the best thing, as you are working with software that still is actual but the versions are not the newest.
Pro No systemd
Pro Runit
Artix actively supports the runit init system known from Void Linux. (Equally besides the OpenRC init system known from Gentoo).
Pro Close to bare Arch Linux
No learning curve if you're coming from Arch or any of its derivatives.
Pro Lightweight
Only the software you would need like Terminal emulator, file manager, media player and a browser.
Pro Compatible with Arch Repositories
It is fully compatible with almost all packages from community, extra, multilib and AUR.
Pro Rolling distro
Pro Flexibility
You can have a functional system in less than 10 mins using GUI installer OR you can do it "the Arch way".
Cons
Con Avoid proprietary-only GPU drivers
GPUs without libre drivers are a problem (not fault of Trisquel, of course). Also Wi-Fi cards in the same vein.
Con No systemd
Some packages flat out won't work because systemd is non existent, sadly pipewire needs systemd to run. Hopefully Pipewire becomes usable soon. Edit: Pipewire does work but you will have to make a startup script.
Con Few Arch packages might not be available yet
Developers are working migrating all packages into their own repositories while ensuring there's no systemd malware.
Con No tiling WM (i3/sway) out of the box
