No worries, I’m here for it!
It’s a noticeable improvement to me, but probably only marginal to the layperson. I haven’t gotten around to more thorough profiling yet (the included btop++ profiler actually caused my games to crash), but I get the impression my PC is utilizing a lot more of its capabilities (based on performance, fan noise, etc), though maybe I’m just confirming my own biases.
I’m guessing you might get similar gains by compiling manually, but the nice thing with CachyOS is that it’s already compiled (likely with other optimizations as well, I haven’t looked too far into it). I have the technical skills to compile manually, but not the time or energy, so it’s a great solution for me.
Yeah, the defacto Arch packages are only compiled for v1, but CachyOS has compiled a lot of the core libraries for v3/v4 (including Wine), which is where I think I’m seeing some improvements. I’m sure the performance would be more optimized by compiling myself, but I don’t have the time or patience for it right now.