How exactly does Fedora manage xorg with the conf files

I am curious as to how the works. I have a 100% working prime render offload set up that involved just install nvidia from rpmfusion. When I check /etc/X11/xorg.conf.d/ there is a single .conf for anyting nvidia in there.

Does xorg instead use the location /usr/share/X11/xorg.conf.d/ the nvidia…conf is there. The other interesting part is that it only list nvidia. I moved over from arch/manjaro with the launch of 32. I am use to having a .conf that includes sections for both the igpu (amd in my case) and the dgpu(nvidia in my case). I don’t see that anywhere in those 2 locations. I am really interested in how this all comes together on fedora.