Here[1]'s an infographic for a report on the Dutch market for Q1 of this year. See the bottom right. iDEAL is by far the biggest payment method.
[1]: https://www.thuiswinkel.org/media/oyhhmgvy/infographic_thuis...
[1]: https://www.thuiswinkel.org/media/oyhhmgvy/infographic_thuis...
What I just described is also what Visa and Mastercard are.
While the graphic might be nice marketing for Ideal, I wouldn't categorize it as separate from debit/credit card.