Omicron vaccine coming out in Sept for Australia too. Been approved recently, outside of UK and US, I think Aus is one of the first to approve it. I doubt many will get it though, partly cuz it's a new vaccine but also people just dun care anymore.
These vaccines make a lot of antibodies in the blood but little antibody in mucosa therefore they don't do much to prevent infection and transmission. The blood protects vital organs.