I’m using the Cachy Repositories on my Endeavour OS install and really happy with it, especially since you can tinker with your kernel and schedulers very easily.
I just installed CachyOS with the Cosmic Alpha DE on my laptop yesterday. All seems well. I haven’t had much time with it yet. Once I get it all set up as I’d like, I’ll share further experiences.
For those of you who have tried / are trying cachyos, there is an interesting benchmark on phoronix covering different Linuxes incl. Arch and Cachyos:
Interesting here is not that cachyos is fastest overall. Interesting is, that Arch linux is second and that cachyos is just ~ 1 % faster in average (page #5; 2284 vs. 2253 points). That tells me that all the optimizations in cachyos, all the concerns related to stability with -O3 or lto, do not pay off. cachyos is basically as fast as Arch Linux.
I have been testing it for about a week. it’s good but there’s no speed improvement at all, so it’s pointless for me. Maybe gamers have performance improvements
I’ll probably uninstall it because it keeps resetting my settings for system tray icon spacing back to default in Gnome with dash to panel. Also the browser is slower than regular firefox and has choppy scrolling on sites like google maps while zooming
agreed with everything you said. one day i will try it (catchy os) but i am sticking with EndeavourOS for life. just from looks alone IMO eos is wayyy sexxxier looking. from what others have posted, i can tell the speed thing is nonexistant. i love my purple linux. 
oh and i am still learning too… big time
I just reinstalled cachy on a spare partition after reading the wiki a bit more. It turns out it is slightly faster, it’s just that webgl is disabled by default on their browser. I enabled it and ran some speed tests and the results were the fastest I’ve ever gotten while testing any firefox based browser on any distro. Webgl being disabled was also causing sites like google maps to be unusable, now it’s fine
The speed difference is still not noticeable to me without running tests, but it did score slightly higher
Did you also set hardware acceleration enabled?
" After carrying out more than 60 benchmarks on these three Linux distributions on the Framework Desktop with AMD Ryzen AI Max+ 395, CachyOS overall was around 7% faster than Fedora Workstation 43 or 10% faster than Ubuntu 25.10. But ultimately it comes down to what workloads you are mostly frequently engaged in whether the performance story of CachyOS is compelling enough to choose it over Fedora/Ubuntu simply on performance terms."
Unfortunately, vanilla Arch was not included in the test.
Yeah, that omission doesn’t make much sense to me either. Since CachyOS is based on Arch, the first and most important thing should be to see whether it actually brings any tangible advantages over other Arch-based distros — especially vanilla Arch or EndeavourOS, which are basically the same at their core.
I’ve tried CachyOS in the past, but I didn’t find anything particularly compelling that would make me stick with it. There are quite a few packages I don’t really care about, lots of pre-configured tweaks I’d rather set up myself, custom kernels and software builds, some questionable decisions regarding swap and dirty ratios — all for a minimal performance gain in some cases, and even noticeable regressions in others (like copying files to a mechanical drive). And, well… let’s be honest, the aesthetics are a bit odd (those wallpapers, wtf!). Personally, I prefer a cleaner, more vanilla Arch experience.
That was my main issue with it. It really didn’t offer anything to ME that made me go yeah I’m switching. The issues with most Distro’s anymore is that they are all interested in giving you what They the developer(s) want and not necessarily what a target audience wants.
I think like most New kids on the block they had their moment and now that seems to gone to Omarchy the newer kid on the block. The problem with an ADD society is Oh Shiny. I Think that is one of the reason I really enjoy EndeavourOS so much. They just give a basic way to install arch without overwhelming you with a ton of packages you really don’t want.
A target audience is not something monolithic and uniform. In my opinion, all install-ready-to-go distros are opinionated. To a greater or lesser degree.
Even when I install EOS, I deselect some packages I don’t want to have from different sections. I guess you could do that in CachyOS too.
Generally, whenever I want to install a distro, I do some research to find out if there is a way to install a minimal “version” of it and build it up from there.
If one is not into building things from scratch, the devs of all the ready-made distros have done some choices you may or may not agree with.
I’ve been using CachyOs on machines where I also have EndeavourOs.. I never noticed any particular performance difference..
need someone like phoronix to do detailed benchmarking on various arch based distros.
Found one:
Linux Gaming Distro CachyOS vs EndeavourOS on Nvidia GPU | 1440p | 4k - YouTube
I wasn’t pointing that out as necessarily a bad thing just that as you state
Totally agree with this. And yeah there are things I don’t install that are part of the Average EndeavourOS install. Most of the time I don’t even install a desktop I just get the base system and build from there. Sometimes I just load the damn ISO onto a system just to get it done with. Really depends on my mood 
The thing is with other Arch based distros though… what is the community like?
I have asked things here that maybe a better person would have asked at KDE or Arch forums and within minutes I had help.
I’d wager if you asked in the correct forum channel that the people here would help you fix a washing machine… It’s very comforting while at the same time you still learn.
This begs the question, what makes an Arch based respin un-Arch like? If one can posit that EOS is basically Arch, then I would suggest that all Arch based respins are basically Arch. EOS makes choices that other respins do not, but that does not make the other respins more un-Arch like.
ahem Manjaro
Manjaro and Artix are exceptions since they maintain their own separate repositories from Arch. But yes, these two are more problematic for definition purposes.
EOS makes choices? In what way ? It’s pure arch 