A quick final summary of Q4OS (Debian-based) and Quark OS (Kubuntu-based), companion distros developed by a single team.
What differentiates both from more normal KDE Plasma distros is that both offer the Trinity (KDE 3) desktop as an alternative DE. Trinity is less resource-intensive than KDE Plasma (600 KB resting state as opposed to 900 KB resting state), so a result, Trinity is touted for low-resource computers, and may have a niche in that market.
Trinity is a design throwback to Windows XP days. Trinity's design similarity to XP is intentional, apparently, because even the KDE 3 menus have been altered to replication XP menus. In this sense, the two Q distros seem to have adopted Zorin's design philosophy, applied to XP rather than Windows 7/10/11. As some point, this may have made sense, but the number of remaining XP users in the world has dwindled to almost nothing.
And additional distinction is that Q4OS and Quark OS have an installer that can be run from within Windows. The Windows installer is touted as a simple method to dual-boot Windows and Q-pop, but I have not tried it to see how it works. That might have a certain appeal to users who struggle with dual boot setup.
But basically, Q4OS and Quark OS are best summed up by my former mother-in-law's Texas locution: "Taint much."
I suspect that Q4OS is a solution in search of a problem at this point. To my mind, Q4OS and Quark OS are not worth the bother. Solus Plasma runs snappy on a 2017 Pentium-equivalent AMD A9 9420e processor with 4 GB of RAM, and it is hard to get much lower on the resource scale than that these days.
