iCloud+ has something like this as well. So far I've only used it with Sign In with Apple, or whatever it's called. Your comment led me to go check out the iOS Settings and it looks one-off random emails aliases can be made in there.

Of course at this point my email is so many places it almost seems like a lost cause. What I wouldn't give to have a reset button for the entire internet. I would be much more careful with my address than I was 20 years ago.