Thanks to the #FreeBSD Handbook on Ports and the following page, I finally got around to building the drm-kmod port and dependencies so that amdgpu runs properly on 14.2. 
https://forums.freebsd.org/threads/freebsd-14-2-graphics-fix.96365/
#FOSS is all about options:
- I chose not to use #RedHat systems 28 years ago.
- I chose not te use #GNOME 15 years ago
- I chose not to use #SystemD 6 years ago.
- I choose to accelerate the migration of all the #Linux based systems I can to #BSD systems because:
- I choose to keep up with the #UNIX way
- I choose to use stable systems which don't change for the sake of change
- I choose to be part of healthier communities, that don't promote monoculture or fall so easily into arrogance
