Hi,
I have no problem with GRUB2 or sd-boot. I have much more problems
with refind and their ilk. While things can look pretty, that's fine,
as soon as it gets in my way when I try to get things done it stops
being fine.
"getting into the way" IMO includes "doesn't show up on the serial
console".
Both sd-boot and grub2 are doing fine here, the standard uefi text
console works on both vga and serial line. Anything doing something
fancy on the framebuffer is problematic here ...
take care,
Gerd
PS: yes, you can configure grub2 to do fancy graphics, but fedora
doesn't do that by default.