Originally Posted by Mwenenzi

off topic

Yes. Just the security check. Security do not ask for a boarding pass.
But few people do that. Probably because 99% of people at an AU domestic airport do not know they can.
Some people do go air side to arriving or departing passengers.
Some (very few) people with *very* high status have any time lounge access. But less than is was a decade ago. [If you need to ask you don't have access]