Is there something similar to privacy.com in Europe so I don’t have to enter my credit card information everywhere? Or another way to buy stuff online privately on many different stores and websites?
You could buy more from places that support Bitcoin lightning or Monero, which gives you a lot more privacy. You can buy gift cards online with those currencies and then spend those gift cards at major online retailers.
I think the TLDR is: use your own bank's card, as you will always end up with a card which is tied to your identity, so better give that info to as few bank institutions as possible, you gain no advantage by signing up with someone new.
On the other hand, if you need to convert and the fees are atrocious, then you could look into Revolut and others like that, but that doesn't really help your privacy, no matter how many virtual cards you make, since they're all in your name anyways
I'm not familiar with any service that works at the international level, but over in Portugal, the biggest ATM network, Multibanco, has had a service called MB NET (now integrated with the newer MB WAY app), which allows you to create temporary cards with 3 different behaviours: one-time, monthly, multiple uses. The first one always has 1 month of validity, while the others only expire after a year, and you can define a maximum capacity.
It works perfectly well in foreign online services, but you have to have a card from one of the associated banks (presumably from their Portuguese branch?).
Most online places are now aware of Revolut's disposable CC numbers and reject them. They haven't worked for at least a year now. They're basically useless.
While the disposable cards might not always work, you can always create a regular virtual card and delete/freeze it afterwards. Not sure if there are any limits tho
What a bummer, I used the disposable CCs with revolution a decade ago and was thinking of going back to it...no point if they're not usable anymore.though.
Depends where you go. My Czech bank card is a debit card with a number on it that you can use like a credit card. Dutch banks don't have this and we use different online payment methods. I never really needed a credit card for anything (until I traveled in France) so the price to have one is not worth it.