I don’t think people who aren’t willing or lack the knowledge to tinker should use anything Arch.
CachyOS doesn’t support Flatpak out-of-the-box because they think their repositories have everything.
I’m not even sure if they support AppImage by default, but both of those installations is available with Orca Slicer on their official website.
If you wanna continue with CachyOS and use Orca Slicer:
sudo pacman -S flatpak
Download Orca Slicer Linux Flatpak x64
flatpak install \<path-to-flatpakref-file>


























CachyOS is never going to be ready for beginners, because that’s not its target audience.