Why is Amazon shipping my order from Australia?

Factual Questions
1

And since it’s a video game do I need to worry it won’t work on my PS5?

2
  1. It may not be coming from Amazon itself, but from a third-party vendor; Amazon is simply doing the shipping. A lot of items listed on Amazon aren’t actually being sold to you by Amazon.
  2. My understanding is that PS5 game discs aren’t region-locked (though digital download codes may be), but I could be mistaken.
3

I think it’s more a question of, will it work in a PS5 that is meant to be used on a TV with a refresh rate that is a multiple of 30 instead of 25?

4

NTSC vs. PAL is not an issue with PS5. I’d be most concerned with any censorship if it were an Australian edition.