This is clickbait. The way they put "ads" in quotes every time shows they know what they're doing. I've seen some other comments here complaining about ads in Maps (which I've never used and can't speak to), but this article is specifically calling out the long-existing practice of Settings showing a little badge on new devices that says "You're entitled to some free months of Arcade/TV" or whatever. That's not an ad, or an "ad."
It's definitely an ad, but it's also been there for years now. And of all the ads I encountered across various platforms and spaces in real life, these are about the least obnoxious.
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Agreed, clickbait. The only reason I clicked the article was because I _didn’t_ see any new ads after upgrading iOS, so I was curious what they meant.