JonEFive
Probably the closest thing you can get to in terms of a “privacy” credit card. Everything about a credit card is tied to you by their very nature. So it depends on what or who you want privacy from.
Someone else mentioned privacy.com which I also use - it’s good if you want to hide your transaction from the credit card company, or if you want to hide your identity from the merchant. But Privacy.com is more like a virtual debit card that connects to your bank account. Privacy.com still knows who you are.
The fun thing about this is that we have evidence that this is how our reality works. The double slit experiment showed that particles change their behavior when observed. (Gross oversimplification and only under very specific circumstances but still extremely fascinating.)