Crosspost. As the title says really. Here is an example:
We like to offer pre-orders and reservations (for which we are yet to find an app that works for us having tried 4 already, so any suggestions there would be great too!).
We want to create a workflow when the customer is ordering that only shows certain payment options depending on cart items. e.g. if the customer has a pre-order item then they can only use Shopify payments or PayPal and not credit options such as Klarna or ClearPay.