ScandiPWA supports the configuration of setting up individual currencies for each store view/website.
ScandiPWA supports default Magento currency configurations, which include base currency and default display currency setup.
Currency symbols will be supported in the upcoming releases. Track the progress here - https://github.com/scandipwa/base-theme/issues/1461
Currency rates can be set for each currency that is accepted as payment in your store.
If the store supports multiple currencies, a Currency Chooser appears in the header after currency rates are updated.
How does multistore work in ScandiPWA