When comparing Fedora Silverblue vs SliTaz, the Slant community recommends SliTaz for most people. In the question“What are the best Linux distributions for desktops?” SliTaz is ranked 27th while Fedora Silverblue is ranked 93rd. The most important reason people chose SliTaz is:
The core liveCD is only 35 megabytes. The boot-from-internet option fits on a floppy.
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Pros
Pro Faster reboots when upgrading
Because Fedora Silverblue uses rpm-ostree, upgrades are performed by creating a new "commit" and reboots simply boot into the new commit, making the time to reboot during an upgrade faster than regular Fedora, which applies updates during the reboot.
Pro One of the smallest distributions with desktop GUI
The core liveCD is only 35 megabytes. The boot-from-internet option fits on a floppy.
Pro Very fast
Pro Can add desktop effects
SliTaz has a feature called "Desktop Effects" which can add shadow or fade effects to windows.
Pro Very customizable
SliTaz is very customizable. You can programatically edit and change anything you want on how the OS looks or behaves.
Cons
Con Installing using rpm-ostree is more cumbersome
After updating or changing the installed packages, Silverblue requires a reboot for changes to take effect, unless the experimental apply-live command is used (rpm-ostree ex apply-live).
Con Install instructions are in French
When first booting SliTaz from a USB or from a Live CD, the installation instructions are in French.
Con Not much variety as to available applications
SliTaz does not have as many applications in its repositories as the bigger distros such as Ubuntu.