Arch is great if you want very high levels of customization without having to get into compiling and coding, like with Gentoo or NixOS.
I think of it as the distro equivalent to custom keyboard kit, you get all the parts and can swap them out as much as you want. But you’re not designing and fabricating your own circuit board and microcontroller, writing your own custom firmware, getting a custom case modeled and fabricated, etc.