TrueNAS iscsi vs nfs in regards to NIC acceleration

I know Tom did a video 2 years ago with NFS vs ISCSI speeds which is super helpful. I believe that Tom has talked about using Chelsio nics in the past. I notices that the T580 and T6 cards look to have TCP/IP and ISCSI offload acceleration and wanted to know if anyone has done testing to see how much a difference those feature make… if any.

I am not clear if support for the offloading is available in FreeBSD/TrueNAS based on this forum post Hardware iSCSI offload and FreeNAS? | TrueNAS Community but it’s also not clear that it would help any either.