Accessing Host from VM (Bridge) without using static IPs

Hi,
I want to access the host from my VM. I know I have to create a bridge in order to do so and found this in the documentation: Accessing NAS from VMs and Containers | TrueNAS Documentation Hub
However I would like to continue using DHCP. Is this possible? If not. why not?

Technically, you can use DHCP on the bridge IP, but then you would not know the IP of the server (as the MAC and IP change)

I go through the process in this video:

Well I can just look up the leases in my DHCP server. I tried specifying DHCP instead of static ip but that did not work. I think there is another reason why it does not work.

I manage all my IPs in my DHCP server and would like to keep doing it that way if possible