Foundational questions about my setup

This is the second report of DKMS drivers making things worse, but there are much more reports of succes, so more research is needed.
Balzini makes a valid point about BIOS updates, a while back X570 boards had issues with USB that were fixed with BIOS update.
I made it a habit of updating BIOS on new boards, the amount of stuff that can go wrong in there is frankly staggering. F@ken Microsoft and UEFI....
Then again, having 50 bilion transistors on a 1x1cm space is astonishing!

I'll take a peek at firmware updates, but the machine is very stable with the in-tree nic driver, idle=poll, and a dedicated cpu for lcnc. All warnings have silenced and I can even record video from two cameras concurrently while lcnc is running with no latency issues.

That is quite an improvement !