Slackware is broken, though.
- Its releases are so far apart that the default installer stops working in between releases cause it can't handle the changes to the repos.
- Its default software selection is outdated, makes no sense (multiple tools for the same task), and is grouped illogically. If I want to run Xfce, I shouldn't have to install the KDE group to satisfy necessary dependencies. If I install the base group, all dependencies for using the package manager should be satisified. And Libreoffice shouldn't be installable only via an unofficial, unsupported third party repo.
- Its documentation is so outdated it isn't useful anymore:
https://docs.slackware.com/howtos:slackware_admin:installing_on_uefi_hardware
"Some modern computers have started to offer motherboards that use Unified Extensible Firmware Interface (UEFI) as a replacement for the traditional BIOS."