When comparing LXQT vs Budgie, the Slant community recommends LXQT for most people. In the question“What are the best UNIX-like desktop environments for developers?” LXQT is ranked 5th while Budgie is ranked 9th. The most important reason people chose LXQT is:
By taking advantage of the modular KDE Frameworks, LXQT is able to offer a modular architecture that allows the user to easily swap components.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Modular
By taking advantage of the modular KDE Frameworks, LXQT is able to offer a modular architecture that allows the user to easily swap components.
Pro Lightweight emphasis
With a focus on being "light-weight", it is to KDE Plasma what XFCE is to GNOME: a familiar enough looking lighter alternative to the more fully featured environment that may work better on lower-end devices and for people who want as lean a system as possible.
Pro Beautiful GUI using Qt.
Pro Great for old and low-end devices
LXQt is unparalleled in its ability to run on the weakest of machines without a problem.
Pro Utilizes Qt
As the name suggests, LXQt takes advantage of the Qt ecosystem to provide a beautiful and performant user experience.
Pro Doesn't use GTK3
Pro Doesn't use GTK3
Pro It's minimal and gorgeous
Pro It's maintained by a dedicated bunch of folks with an eye for detail
Pro Modern design
Pro Built from scratch and integrates into current technolgies
Budgie is built from scratch to integrate with the Gnome stack, this way hopefully having more stability by utilizing technologies that have a lot of community work already behind them.
Pro Very lightweight
Runs well on low-end hardware and gaming PC’s alike.
Pro Many large distros support it out of the box
Ubuntu, Fedora, Arch, and Budgie's own Solus all support Budgie.
Pro No big memory leaks
It can be run for weeks with no noticeable increase in memory usage. That is a vast improvement over gnome-shell.
Pro Can emulate Gnome 2 desktop look
The Budgie desktop can emulate the classic Gnome 2 look.
Cons
Con Poor file manager
pcmanfm-qt is lightyears behind its GTK version.
Con Very limited in customization
Very few themes available, especially modern themes.
Con Ugly
Con Multiple application sources
Which leads to an inconsistent desktop.
Con Not a full desktop environment
Like LXDE or Xfce it is not a full desktop envirnment and is missing many utilities that need to be borrowed from other desktops which will bloat the desktop.
Con UHD screens hardly supported
DPI settings are not adopted. The readability, usability of this DE on UHD screens is not advisable. Fonts are not scaled at all.
Con Unthemeable for usual users
As all Qt desktop environments themeing is hard since you need to know C++ , there is a sideway using qss however its not as powerful as GTK, Enlightenment or Windows theming.
Con Depends too much on KDE
Even the programs/apps shipped with LXQt are from the KDE project. They don't have their own projects yet.
It's pretty similar to Budgie that depends on Gnome for almost everything.
Con Pcmanfm-qt needs gvfs
you can mount drives with mount, but pcmanfm uses gnomes gvfs to mount drives.
Con Missing Features = Lightweight
For the LXQT developers, lightweight is a synonym for missing features.
Con A lot of bugs
This is a very disappointing desktop environment, it's very buggy. Although there still is hope that these issues will be resolved.
Con Not quite ready for open deployment
In the current state, LXQT is a beta desktop that feels like a heavy alpha. A lot of the tools and underlying features are in a testing state, while the LXQT project itself has not had a gold (1.0.0) release as of yet.
Con Not a desktop environment
It's just a replacement for the GNOME-shell and you still need a GNOME-desktop installed at the same time.
Con Sometimes buggy
Budgie can sometimes be buggy.
Con Less lightweight than you would expect
Budgie has a nice and simple style, but the memory usage is quite high after booting. Thankfully, the lead developer is working to remedy this.
Con Does not properly support multi monitor
Having two monitors works, but it's not perfect.
Con Has not switched to Qt as promised
Very dependable on Gnome
Con Very hard to install
Installing in distros that are not Ubuntu-based can be hard.
Con Lacks some basic features
Many things you'd take for granted aren't available in Budgie, like an option for showing windows from all workspaces when alt-tabbing.
Con Issues with proprietary drivers and Mutter
Mutter causes issues with screen tearing and microstuttering in most applications especially with NVidia GPUs.
Con Still in development
Budgie is still young and in active development, so it may not be as stable as many other desktop environments.
Con Just another GNOME-shell alternative
You still have to install and use GNOME software.