SparkyLinux vs Garuda Linux

You have access to a large user repository, Ubuntu guides can mostly be applied since both are based on Debian.

You have the option for Sparky to be based on Stable or Non-Stable, bringing greater flexibility to user priorities.

Sparky is designed to be lightweight in it's core. It is based on Debian but optimised for old hardware, meaning you can run a full heavy desktop environment on a lightweight foundation, bringing greater performance compared to similar Debian or Ubuntu-based distros.

Any Linux desktop in it's vanilla form can be installed on top of Sparky, whether that be alongside a pre-existing environment, or on top of a basic command line system. Furthermore, the command line system is easy to operate due to Sparky's advanced installer utility, from which you can choose whichever desktop environment you desire, straight from the Debian repositories. Guidance is on their website.

Uses vram, and a zen kernel.

The dr460nized KDE theme is awesome.

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.

You already have most of the customization done for you out of the box.

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.