Zend certified PHP/Magento developer

Magento2.4 Enterprise Braintree virtual Terminal

Have an odd question hoping the community can answer:
In Magento 2.4.4 enterprise we have a Braintree Virtual Terminal link
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We have a multi-store view site as we have multiple currencies. My question is Staff can use this to manually accept payments but how does the platform know what currency to charge the customer in USD vs EURO as an example? Or does it not matter because when you enter the amount it charges the customer in what ever currency their credit card is setup for?