Much easier to implement than I was expecting.
I am moving what will be my initial Mastodon server off of my main (Trusted) vlan to the IoT vlan. I need to investigate the best way to implement Proxmox in general. Should I create a Server vlan? Time will tell.
An introductory guide to VLAN configuration on a Proxmox virtualization server so that you can group related VMs onto their own subnet.