I really think it's an improvement to add an extra form field to the Stripe Payment admin section where you can alter the available payment_method_types values.
Right now (in StripePayment.php) I changed it from:
'payment_method_types' => ['card']
to:
'payment_method_types' => ['card', 'ideal','sepa_debit'],
Also alert people that in Stripe dashboard you need to activate those extra payment methods, otherwise the Stripe payment button is not shown on the checkout page.