Yes, the same was true for me. I literally only want to accept payments, the sales page and the fulfilment is already done externally, so I really just need a payment form that sends me a callback.

Stripe does this, but going through their whole KYC process has become extremely arduous (and they seem incapable of being clear about what they need/want, as well as understanding that Dutch people with a Dutch company sometimes do not reside on the Netherlands).