Deleting things that iPhone remembers?

[zoran]

How can I delete any autofill pass, or username, or cardNumber that my iPhone "remembers" when I make a purchase?

 

[zoran]

Isn’t there an ability to erase all the things that a user types in?

 

[BrianBaughn]

Not sure about iOS 15 but there's this:

Find saved passwords and passkeys on your iPhone

Learn how to find and edit your saved passwords and passkeys on your iPhone or iPad.

support.apple.com