When comparing Kubuntu vs Void Linux, the Slant community recommends Void Linux for most people. In the question“What are the best Linux distributions for desktops?” Void Linux is ranked 9th while Kubuntu is ranked 37th. The most important reason people chose Void Linux is:
An init system with the "do one thing and do it right" mentality. Void Linux does not support systemd.
Specs
Question Ranking
Pros
Pro Full featured desktop environment that is actively developed
Unlike some abandoned, unfinished distros, Kubuntu is up to date and offers a fully functional desktop environment that targets workstation users.
Pro Customizable
You can easily adjust the workspace to your needs.
Pro Runit init system
An init system with the "do one thing and do it right" mentality. Void Linux does not support systemd.
Pro Runit is fast and easy to configure
Runit init system is incredibly fast to boot and very simple to use.
Pro Rolling release
Pro xbps (X Binary Package System)
A brand new package manager that is fast, full-featured, and tailored specifically for Void Linux.
Pro Musl image available
Musl libc is lighter and faster than bloated glibc. Musl has been argued to be more secure overall than glibc also.
Pro BSD-like improvements with Linux
Full support for LibreSSL, an OpenSSL fork focused on maximizing security. The xbps-src package builder works in a similar manner to BSD's ports collection.
Pro Different DE's live ISO's are available
Arch Linux doesn't make ISO's with different DE's. One need to manually install it through CLI version. But Void which is competitor of Arch, provides a wide range of DE's ISOs.
Pro No Systemd
Cons
Con Often unstable
There have been several bugs reported. Some of these bugs are: shutting down randomly, refusing to boot, refusing to shut down, menus may act strange, icons may disappear, etc...
Con Not suitable for those new to Linux
Documentation is scarce, NTFS partitions aren't automatically mounted, etc.
Con Small amount of packages
Con Not popular
Void Linux is not a popular Linux distro. So, if you run into a problem then it's likely you won't find any fix except from the maintainers.
Con Poor video performance with AMD gfx cards
While you can easily get the latest VLC thanks to Void being a rolling distro, video performance is abysmal, at least for those with AMD cards.
Con Slower than pacman