Telstra has got the iPhone SE 2022 for $529 for the 64GB (RRP $719). Doesn't state if it locked or not. It will be interesting if Officeworks can price beat it.
Personally, the phone is getting long in the tooth. However, it will be a sufficient upgrade for someone still rocking an old iPhone (such as a iPhone 7) & wanting to retain the home button.
The prepaid iPhone SE is locked to Telstra.