Nah, these were neo-Nazis, they’re not taking their cues from Palmer, they’re taking them from… another guy.

From the ABC article (https://www.abc.net.au/news/2025-04-25/melbourne-anzac-day-welcome-to-country-hecklers/105215124):

Police were later seen escorting prominent neo-Nazi Jacob Hersant away from the service.

In November, Hersant was the first Victorian found guilty of performing an illegal Nazi salute in public and was sentenced to one month behind bars.

The ABC understands a group of far-right extremists were present at the Shrine.

This quote cited on his Wikipedia page (https://en.m.wikipedia.org/wiki/Jacob_Hersant):

After his conviction in 2024 for performing a Nazi salute in public, he stated to journalists “I’m ready to go to jail, because I’m a Hitler soldier and what I’m doing is right”.[8]