Are there services in the EU similar to Privacy.com? They along with US arm of Revolut lets you use disposable digital cards to buy things, but I don't know if such functionality is legal in the EU.
i use revolut in the eu and disposable cards work. its legal because kyc is only between you and your bank (revolut is a bank operating out of latvia), they are not required or allowed to give your personal info to anyone other than payment processors and police.