In fairness, as others have pointed out, the phone is much more personal than the home computer. Your phone is almost always with you, collecting much more intimate data than your PC can.
Your phone almost certainly knows where you are at all times, for example. It may know whether you're walking or sitting. It knows who calls you, who you call, who you message.
The laptop may know some of that, but it doesn't have the same sensors, and doesn't stay with you most times you leave the house.
Indeed, it's true for most people, but I use Librem 5 with hardware kill switches for modem, sensors etc.
There's a middle ground between living deep in the woods without windows and walking around naked in public.