When comparing Slackware vs Microsoft Windows 11, the Slant community recommends Slackware for most people. In the question“What is the best laptop OS?” Slackware is ranked 13th while Microsoft Windows 11 is ranked 57th. The most important reason people chose Slackware is:
Uses stable, plain-vanilla packages from upstream.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Stable
Uses stable, plain-vanilla packages from upstream.
Pro Strong adherence to UNIX Principals
Pro Ideal to learn more of Linux
Follows the original Linux roots. It still sees Linux as a free clone of UNIX so the distribution tries to be UNIX-like.

Pro Package management
Uses standard tar archives with shell scripting as packages.
Pro One more distro which is init based
Some users don't like to install systemd based distros because they increase booting and processing speed.
Pro Oldest surviving Linux distro
Besides Debian (which was first released in August 1993), it is the oldest still maintained Linux Distribution and was first released in July 1993.
Pro Super fast
Pro No systemd
Pro Great support for video games
Top support for video drivers.
Pro New Features
Such as notification pane, weather gadget and a sweet new centered taskbar.
Pro Great for gamers
DirectX 12 Ultimate and DirectStorage boost gaming performance quite a bit.
Pro New UI design and features
Centered Taskbar and Start Menu, Widgets panel, and so many more new features and UI elements make Windows 11 truly unique compared to other operating systems.
Cons
Con Not user-friendly
It is made to be KISS (keep it simple, stupid), so you have to do everything by hand.
Con Large size live ISO
One needs to vain 3GB+ data for downloading one slackware ISO.
Con Narrow repos
Doesn't offer the same amount of options as other distros do.
Con Niche/small community
Slackware is its own niche and has a small community.
Con Very slow release cycle
Hasn't updated in 3+ years.
Con Dependency issues
When it comes to dependencies, Slackware shows more issues than many other distros.
Con Tethered to the Microsoft Store
Each new release of Windows tugs users closer to the walled garden of the Microsoft Store.
Con Still too many legacy features
Windows 11 still has the Control Panel, Computer Managment and lots of other legacy features that originate from XP, Vista or 7.
Con Spyware
Like Windows 10, Windows 11 records everything you do, builds a profile, then sells it to a third party. Go with Linux.
Con OneDrive is a bit slow
OneDrive opens a folder or file a couple seconds slower on Windows 10 compared to Windows 11. Not a problem if you don't use OneDrive though.
