How to change to boot from PCIe bus

NVMe is recognized as /dev/nvme0n1p1 however it will only boot from sata USB drive at SDA1.

How do I change this to boot from PCIe?

Ubuntu 20.04
Kernel 5.12.0

Changed USB/PCIe using KBI

Current image does not support to boot from SSD.

What do I need to do to modify the boot sequence. We are trying to build with the 5.13 kernel so lgpio will work and is the PCIe boot something that can be easily added?

Trying to migrate away from Pi4 since your VIM3’s seem to be the best hardware solution at this time.

Do you plan on having a kernel greater than or equal to 5.13 and PCIe boot added in the near future?