I'm in NSW. If I don't hear from AGL, I'll switch providers in July when the comparison site has the new tariffs. I tried to call, but they really don't want to talk to you given the wait times.
I've just done the numbers using my bill from 12 months ago with the new tariff from 1/7/23. Based on that bill my costs will have increased by 73.67% using the new tariff and daily supply charge. 73.67% increase in just over 12 months, not on AGL.