When comparing Gallium OS vs Garuda Linux, the Slant community recommends Garuda Linux for most people. In the question“What is the best laptop OS?” Garuda Linux is ranked 10th while Gallium OS is ranked 38th. The most important reason people chose Garuda Linux is:
Uses vram, and a zen kernel.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Chromebook hardware support baked in
Many things work out of the box that do not with other distros, such as touchscreens.
Pro Chromebook specific OS
Gallium OS is engineered with Chromebook hardware in mind to make the best use of Chromebook CPU's, limited RAM, and storage limitations.
Pro Easy to install
Using chrx on Chromebook there are only two or three straightforward steps to get Gallium OS running.
Pro Lightweight
Based on Xubuntu and requires a low hardware spec. Thus it supports almost all Chrome OS devices.
Pro Dual boot
Installation option to dual-boot GalliumOS alongside ChromeOS.
Pro Battery life
Efficient in using the battery.
Pro Super-fast
Uses vram, and a zen kernel.
Pro Themes
The dr460nized KDE theme is awesome.
Pro Easy entrance to Arch Linux
Filled to the brim with lots of quality-of-life changes and optimizations that are simple enough for long-time Windows, long-time Mac users, and Arch newbies to understand. Though, it also leads to bloat or not necessarily helpful extra software. If you're not into the "bloat" added in, try checking out the barebones version, you'll need to know a lot of things bout Arch to fully use barebones.
Pro Highly customized interface
You already have most of the customization done for you out of the box.
Pro Unused RAM is wasted RAM
It takes just a bit more RAM than Manjaro. Edit: This statement is only true if it helps the user and since this could be running on a low end machine this will not.
Cons
Con Not updated since 2019
Con Bad speaker support
Speaker support is often broken, either no sound or lots of noise/distortion.
Con Not the best looking UI
It's not the best in terms of UI but you can always install themes.
Con Too large
Too large to install on chromebook.
Con Uses Xfce
Not realy useful for touchscreen devices.
Con Firmware update
Required opening the back and removing the firmware write-protect screw and running a script.
Con Needs a lot of RAM
Minimum is 4GB, for most Linux distributions it's 2GB or less.