> Ever since then I have not understood why most distros don't switch to this setup. The persistence of GRUB for x86-64 systems is both fascinating and irritat

> Ever since then I have not understood why most distros don't switch to this setup. The persistence of GRUB for x86-64 systems is both fascinating and irritating; the original driver for users paying the price of the complexity of GRUB was the idea that it would bring consistency across architectures and be an overall reduction in complexity for distro maintainers. Instead the bootloaders for non-x86 architectures are generally not-GRUB (zipl, various ARM options which are sometimes SoC specific, and so on), while x86 users are stuck with the byzantine complexity of GRUB.