"recommended" simply means the government agencies are not Prescribing (instructing or dictating a rule).
However, the government agencies made it clear they were no longer prescribing and the onus was on the PIC when the changes came through decade ago for Class G.
So far in this thread people have been talking about CTA as well as Class G (different rules), what happens in the UK, what some airfields do, what some instructors should do etc. Circuit Diagrammes have been posted which are wrong etc. That just confuses everyone.
Instead there are recommendations for Class G in this link.:
They include:
When you MUST make a call
When you SHOULD make a call
Calls recommended ALL the time
Calls when there is other traffic
https://www.casa.gov.au/sites/default/files/2021-05/radio-procedures-in-non-controlled-airspace.pdf
If there is a bad accident, and you were complying with the above radio procedures, you have an industry benchmark to defend any negilgence action against you.
You will also be in synch with the rest of us who follow those procedures.