Does Apple Card charge a transaction fee for foreign currency purchases?

If I use my Apple Card to make a purchase online from a website that uses foreign currency (ie., not US Dollars), is there a transaction fee? I understand that I will be charged the US Dollar equivalent based on the currency exchange rate, but some credit cards also charge a fee for making the exchange. It will also make a difference on whether or not I should use the Apple Card when I travel overseas.

I have not been able to find the answer on the Apple Card website.

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