One thing that has changed since I went through about 2.75 years back, and then about 2 year ago, just prior to pandemic or so, is the auto scanning to BP to open the first section on the "int" departure system.
Years ago, there used to be the frosted double doors, that opened side ways, and a person there to check your BP.
Now, your BP will be scanned by a DIY system reader, to pass the turnstil system, and this is even prior to the first human security scanning.
Since MEL T2 airport was updated, a lot of things have changed, scanning wise.
The initial BP scanning is DIY too, the girl/guy by the turnstils does not "assist", but makes sure there is a flow of pax through.
You can google "T2 MEL airport" just to see what to look out for, tho.
June, heh, not all that far away now.
I am envious (for you)!
My flying is not till Jul, dom only though.