[FROG] VRRP setup with netplan on Ubuntu 20.04

Hello, I'm looking to set up VRRP via frr 7.3.1 as per http://docs.frrouting.org/en/latest/vrrp.html I'm using Ubuntu 20.04 which uses Netplan to configure interfaces. Can the macvlan devices be defined in the netplan config file or do I need to run a separate config/set of command to create the devices I need? Any help would be much appreciated. Oliver