When comparing Slax vs Trisquel GNU/Linux, the Slant community recommends Trisquel GNU/Linux for most people. In the question“What are the best Linux distributions for desktops?” Trisquel GNU/Linux is ranked 29th while Slax is ranked 54th. The most important reason people chose Trisquel GNU/Linux is:
Fresh installation looks great.
Specs
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Pros
Pro Persistent changes
Changes you make in the configuration persist if you run from USB.
Pro Pretty fast to boot up
It was considerably fast to turn on when booting from cd.

Pro Modules
Standard tar archives plus some simple shell scripting produces modules that you can load dynamically into the OS for added apps and functionality.
Pro Modern desktop

Pro Small footprint
About 200mb, but with a full KDE4 environment and loads of useful apps.

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.
Cons
Con Overly complicated HDD/SSD installation
While it has a nice layout Slax's lack of an installer tool like Tinycore's just can't be justified. It seems strange that it comes built in with programs that some users may not want, yet it doesn't have an easy way to install it. Due to its heavier use of RAM, built in software, and lack of an installer its hard to choose it over TC.
Con Works slowly on old computers
Con Infrequent releases
Since Slax is maintained by only one person, releases are not that frequent. So it may take a while to get bug fixes or new features once you start using it.
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.
