So I got a lemon.
I have persisted with trying to dev on what the advertising said was the Raspi4B killer.
On paper this hardware should be great, but it just isn’t.
Radxa has stopped providing any meaningful bug fixes and their wiki pages are full of typos in what should be copy n paste code for newbies.
The Uboot dpkg code for the 4C has been broken since day1
I can work around this and have but the lack of any further development and the apparent abandonment of this hardware means this unit is now just landfill.
So as a note to anyone who is a novice and anyone who wants to do serious development -> move on and get a Raspi 4B -> the hardware might be not as good, but at least you can properly leverage it because Raspi forks are actively maintained by Pi Foundation and volunteers not just abandoned with no word from the manufacturer.