This is mostly hyperbole .
There is elements of truth to creating a chip with this kind of potential. Which is why the article singles out IBM/Lenovo but this is the same for any company that designs its own computers and Bios, that this translates to ALL computers from every manufacturer is a stretch.
Now both Apple and Microsoft can do this, with ease. They create the operating system, even you write software to detect what the operating system is doing , you may well be reliant on the operating system to provide accurate results. Then you have the main processors Intel or AMD, also US based. That would be the next chip down the line to be able to do such a task (and nooo, even if they were manufactured in China, which they are not, the chip design is not something that the manufacturer of the chip would endevour to change in such a massive way to not only be patently obvious, but most likely cause their contracts chip to fail)
Working own the line you then have ARM chips, which have massive popularity, I bet they are in almost every mobile phone, but they are everywhere. A British company, now if you wanted to build in listening ability, done. Wouldn’t even need to turn the Phone on. ARM could do it, but the company making the phone, well, they could too, if they wanted. But produce the phone in china and think they can modify their customers work . No way.
But that doesn’t mean the Chinese are not trying to embed chips that do this, the point is, compared to the US , UK , Japan its negligible.