All if the examples of blocking appear to be from Optus in the article. And anecdotally they seem to have been the most heavy handed with this. So while there might be further blocking over time on the other networks, I’d start by switching to the Vodafone or Telstra networks if you end up blocked by Optus.
iirc it’s all because of legislation that all 3 telcos have to adhere to so they’ll all do the same shit, also Telstra uses a shitty proprietary voip implementation so things like lineageos might not work
This is true, but the way the telcos have been implementing it is different (even if the specifics of that remain unclear).
I expect some blacklisted devices will become whitelisted in the future on the various networks (and vice-versa). The whole thing has been poorly communicated and rather opaque.