If you want e-commerce use then get a regular Mastercard Debit. Maestro cards require physical presence of the card and electronic interaction between the card and the POS.
iDEAL is from the Netherlands, but of course many countries have similar systems (Belgium: Bancontact, Germany: SOFORT, Poland: BLIK, Sweden: Swish, India: UPI, China: AliPay/WeChat Pay, etc., etc.)
Please tell me how the hell I should input a 19 digit debit maestro card into 16 digit credit card number slots. It even has letters.
> iDeal
Seems like it's only a Dutch thing according to the wiki.