Is Turing Pi V2 MAC address random?

I am running the original kickstarter firmware on my Turing Pi V2.4 with ethernet connected to the port closest to the HDMI port. I am using PiHole for DHCP and it seems that the Turing Pi is using a different MAC address each time. Is this by design and will v2 of the firmware have an option to disable this?

Note this is only the case for the Turing Pi. The individual CM4 nodes I am using have the same MAC address each time they are booted.