Firstly, Ur fracgp doesn't get u anything more than conditional reg which means u have to work under supervision. . None of the diploma by Australia uni gives u an financial edge.
Private wise only raffles can hire u. Government wise, it's mohh or one of the polyclinic.
Thing is, polyclinic seldom hire overseas trained gp straight as u typically can't hit the floor running unlike one of the local guys who had rotate through 1 year of polyclinic settings and proven to work under pressure ( plus with knowledge of local guidelines , referrals, social system, hospital system and even knowing how to use the terrible system known as epic and Nehr). Polyclinic bosses under a lot of pressure and every hire is valuable. Few of them want to chance it on an unknown. Furthermore as u have a non local qualifications, u cannot advance to consultant and that means u more likely to leave once u hit full reg. Now why do I want to hire u with all that uncertainty?

When mohh hires u, the salary is not great la. If unwork hard in auz, u probably getting 100 ton150 an hour. Mohh Dr get 5k a month nia. And no, Ur fracgp doesn't give u more money.
Raffles might not take u too. Same reason as above, u can't hit the floor running as primary care is quite contextualised Vs say a hard core skill like surgery. Eg, a Singapore trained gp going over will not know what Medicare is, what's the big deal about aboriginal health , what's a long consult , what's a short one and gasp, u can't sell medication to your patient?!! And what's with 15 minutes consult? That's a luxury! I have 2 mins per patient in sg!

Stay in Australia la. Best bet financially.
If it's family then come back sg , reset urself with mohh and maybe move after 2 to 3 years.

This is the best and true advice u gonna get. Ignore trolls who are not even real docs.