There are many configurations that aren't (easily) possible with the GUI. The average user isn't going to care if they use LVM on LUKS or LUKS on LVM, but if yo

There are many configurations that aren't (easily) possible with the GUI. The average user isn't going to care if they use LVM on LUKS or LUKS on LVM, but if you do, Arch makes it easy. I personally prefer using EFISTUB instead of a bootloader, and this was very difficult to do on Ubuntu last time I tried.