Oh, that one is weird.

I see this feature in Poland. The choice is clear. Or there is no choice and it is paid in local currency.

I saw the same in an ATM in Greece. The first screen wanted me to let them convert the currency (at a 20% markup), I declined, and the second screen said "are you sure? You might be charged a lot" and had "accept" and "decline" where the small print said "do you want us to convert anyway?".

It was really scammy and I almost fell for it.

That one is not weird. There is an intent to deceive, so it is fraud.