Cannot default payments to base currency

[nothingtosee-jml]

The default Magento 2.4 behaviour is to use the ‘Base Currency’ for all payments. The Checkout extension overrides this behaviour and allows payments to be made in any of the ‘Allowed Currencies’ selected on Magento Admin. Payments will fail if an Allowed Currency is selected by the customer but that currency is not available on the Checkout.com account.

We want to return to the default Magento behaviour of using the Base Currency for all payments so that we can continue displaying multiple currencies without adding multiple currencies to our Checkout.com account, is this possible?

This is the default behaviour that Checkout extension removes.