Interesting how this problem happens with laptops and hybrid graphics. I am using an Asus B650M-A Prime AX II with a Ryzen 5 7600X and I do have the iGPU enabled with set to primary. I did try disabling the iGPU and boot directly off the RTX 5060TI however this made no change to having the card being usable in TrueNAS.
I also have Resize BAR and Above 4G enabled in the BIOS with UEFI only enabled. Changing these settings also had no change.
As for trying out a nightly build, I don’t feel comfortable doing this on my current setup since it is being used as a production system. I use it for 24/7 video surveillance and it need it running as reliable as possible. If there are other things I can try on the early adopter build or gather more information, I can certainly do that.