From the article, many users report being unable to disable them:

> "Infuriatingly for iOS users, the only way to disable these promos is to either let them expire — which in many cases could take weeks or even months, leaving a persistent notification badge on the Settings app in the meantime — or pay for the service being offered. There is not always a “dismiss” button to shoo them away for good, and when there is, some people have reported that it doesn’t seem to work."

> "And unfortunately for users, that means more ads like this on their devices. While they are far from the most obnoxious ads around, the fact that many cannot be dismissed is clearly rubbing users the wrong way — as is the fact that the promos even exist at all in an Apple product.

There is also the possibility that at least some of these adverts are appearing due to a bug. The iCloud+ one in particular has drawn comments from users who are already subscribed to iCloud+ and thus, one would think, should not need to see any ads like this."

Anecdotally I have had this happen in the past, but not currently. I am particularly annoyed by the pattern where after an update it nags me to set up Siri, and the only way to remove the red notification icon is to partially progress through the setup before quitting. If you exit early the notification persists.