New comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/issues/48145#issuecomment-1884486750

Comment:
The arch page you link says 

> However, Arch Linux defaults to using mkinitcpio to generate its initial ramdisk (initramfs), which does not support this.

but i agree it'd be nice to have a mechanism for other initrams to load microcode (e.g. booster, tinyramfs).
in the intel case, it could be stripped first (otherwise it's huge) and placed somewhere.