What? There is absolutely no evidence of that. Australia did not go into a level 4 lockdown and they are tracking similar to us. Is Ozzy covering up 10s/100s of thousands of deaths? No, i don't think so. We would be in the same health situation with or with out level 4 lockdown, except now our economy is a lot worse off.
Aussie is actually doing much better than us despite never going into L4.
To be honest right now I think we got it wrong going into L4.