I still don't understand why people can't get that not all i9s are the same. That's literally what this title is implying ... Which isn't even the article's title ... Maybe someone will edit it so people stop assuming they mean the i9-10900k ...
Also i9 doesn't mean "fast" it just means it is the most expensive of its generation. You will get much closer to M1 performance using a mobile 11th gen i7 than with any i9.
Intel likely intended people to mix up the processors like this because they could easily have marketed a distinction between them.