Thanks for chiming in, @Willa.
I've just gone ahead and added your name to the feature request submission. As mentioned above, feel free keep an eye on our Changelog for future updates.
Thanks for joining the conversation.
As mentioned above, we do have an internal system in place for submitting feature requests, so I'll make sure yours is added to the list; I completely understand that being able to receive payouts in different currencies would be a great feature to have.
I've checked in with our Shopify Payments team and the reason why this currently not possible in Australia is due to a limitation with our banking partners. I'm hoping that this is something they can implement in the near future, however.
In the meantime, please keep an eye on our Changelog for updates!