You know what I find odd? The fact that we don't seem to have nice payout services that I'm aware of, that would let me payout some money to a service provider from a platform accout, like "Hey, here is my bank account, here's their account and here's how much I want to transfer to their bank, give me an API to handle it without me needing to think about PSD2."
PayPal requires the other person to either also have a PayPal or a Venmo account: https://www.paypal.com/us/business/operations/mass-payments
Stripe requires the person to also have a Stripe account: https://docs.stripe.com/connect/add-and-pay-out-guide?dashbo...
Even local solutions here in EU that allow paying with an internet bank integration, still don't give you the ability to do fully automated payouts, like Klix: https://developers.klix.app/api/ (though they have bulk payments through the portal)