But they're not going to stop you using computers. They're just going to stop you using YOUR computer. They want you to pay a subscription to use THEIR computer, and to own all your data. So of course they can scan that for even more targeted ads.
This is the endgame the techbros want. And the shitter about this is, we'll end up paying more in subscription fees than we did buying parts, and to kick us in the teeth, I'd bet that we'll only get whatever GPU/CPU compute is leftover from their priority corporate/AI contracts.