When comparing Solus vs KDE Plasma, the Slant community recommends Solus for most people. In the question“What are the most stable Linux distros?” Solus is ranked 17th while KDE Plasma is ranked 21st.
Ranked in these QuestionsQuestion Ranking
Pro Rolling release
Pro Modern desktop environment
The default desktop environment used by Solus is called Budgie and is quite nice and minimalistic.
Pro Easy installation
The installation procedure for this distribution is quite simple. It's GUI based and all you have to do is to follow the instructions given by the installation window itself.
Pro Exclusively for desktop systems
The system itself is very stable. All packages in the repository seem to be carefully picked, well prepared and run stable.
Pro Great package management
The software center makes it really easy to install the latest software through Snappy and Flatpak. Including third party software.
Pro Rock-solid Distro
Very stable and well curated.
Pro Most stable Rolling Release Distro
System boots quickly and stays responsive. Does what operating system should do, and does it really well.
Pro Seamless Packages
It may not have the most obscure packages, but the packages it does have is a good number of everything a Linux user needs. Gamers, developers, desktop users, etc. all have the necessary packages and then some. The packages themselves are integrated perfectly and are very well updated.
Pro Rolling Release Model
Wich means you don't have to suffer from version to version updates that can break it.
Pro Default experience is clean and easy
The default desktop experience on the Budgie version is very clean and streamlined. Although the Budgie DE isn't the most customisable, but it's customisable enough for me to recreate the desktop style of ElementaryOS with the dock and bar at the top.
Pro Friendly towards proprietary codecs, firmware and drivers.
So you won't have to enable PPAs or extra repos for that.
Pro Lightening fast boot time
Pro Well curated software
The software is well curated in the repos, you have access to flatpaks and snaps, so virtually, all the software you'll ever need is there for you.
Pro Friendly community
The only community who values the newcomers. Very helpful community.
Pro Built from scratch
Pro Highly flexible
There are many customization options and possibilities to tweak the desktop, including widgets.
Pro KDE is an evolution on the classic desktop model
KDE 4 is a great evolution on the classic Win95/Gnome/XFCE approach. It's moving in innovative directions while respecting the classic metaphors.
Pro Has a file manager that provides a good balance between power and simplicity
Included file manager provides several icon, list and detail views to choose from along with features such as tabs, bookmarks, tagging, previews and metadata, network file access, bluetooth file transfers to/from devices and excellent removable storage integration while remaining fast and easy to use.
Pro Looks beautiful
The design of the three built-in desktop themes; Air, Breeze, and Oxygen, are very beautiful to some.
Pro Adheres to standards
Standards adherence allows for interoperability and shared technology for X Window System desktops, with similar Wayland support being worked on. Applications not written with Plasma in mind work very well in Plasma as a result. The development team has also been instrumental in standard creation and adoption such as NETWM, X11 clipboard, icon themes, mimetype handling, application menu standardization, system tray protocols and notifications and more.
Pro Keyboard friendly
Nearly all actions can be driven with keyboard commands. Window management, including effects such as desktop overviews, can be triggered with a keyboard control (or mouse gesture) and some even support filtering results (such as windows shown) by typing. The KRunner tool (default keybinding: Alt+F2 or Alt+Space) provides searching local files, online sources, unit conversions, math and more all from a keyboard driven interface.
Pro Comes with a suite of powerful applications
Plasma Desktop generally comes packaged with a full set of applications to get users started, including a file manager (Dolphin), advanced file manager and browser (Konqueror), image and document viewers (Gwenview, Okular), the Calligra office suite, CD and DVD authoring (K3b) and dozens more. The desktop can be installed and used without these applications, but they add significant value for many people.
Pro Integrated advanced search
Plasma Desktop comes with an integration search system that makes it easy to find local files, emails, contacts, events and more. The file manager supports tagging and rating files as well as full-content searching and the KRunner command window and the Milou desktop widget makes searching for files, emails, applications and other content by name, subject, category, tag, fulltext, etc. very simple. It does this with essentially no noticeable interference with day-to-day usage of the computer, thanks to the scheduling built into the backend system (Baloo).
Pro Bunch of coherent applications
What make plasma so nice is the galaxy of apps, sharing same look and feel, configuration and behaviour.
Pro Multi-device "convergence"
Plasma Desktop provides seamless "zero config" integration of your Android device with your laptop and desktop machines via KDE Connect. Phone calls, SMS messages, cross-device copy and paste, media remote control, cursor control and more are supported.
The technology that Plasma Desktop is built on, simply called "Plasma", also provides interfaces for phones, tablets, netbooks, and media centers in addition to the desktop. These additional interfaces use the same underlying frameworks and therefore work well together and have a unified feel to them. They also support a common set of applications across them which adapt to the input methods and screen sizes.
Con Not much software
There is not much software available.
Con Lack of software in repositories
There is a lack of software in the repositories. This is the only OS where I have had to build some applications from source or install from the app's site within the first month os usage. Though this is most likely because the distro is still relatively new.
Con There is often a black screen after update
Con An upgrade breaks the system quite often
Con Forums are not very friendly
Con No USB Image writer
Con The default desktop environment is not very customizable
Maybe because it's a relatively new project still in its infancy and this may be fixed in the future, but Budgie is not very customizable. You can only change the theme and wallpaper.
Con Yes Systemd is the future
Con Slow development
Con Software a bit slower to launch than for other distributions
Con Stability problems
Under certain conditions, most of KDE's components can be highly sensitive to race conditions, which leads to KDE applications frequently crashing, and, on rare occasion, kdeinit itself locking up.
Con Perceived clunkyness and slowness
Compared to other options, KDE is still perceived slow. Especially, the desktop takes a few seconds to login.
Mouse pointer can feel sluggish, or laggy, on older systems.
Con HiDPI support is great!
One can even synchronize the login screen to scale with the rest of the DE