I think it's because the laptop OEMs don't build their own laptops, they just pay some Taiwanese ODM to build it. The ODM is more of a manufacturing company tha

I think it's because the laptop OEMs don't build their own laptops, they just pay some Taiwanese ODM to build it. The ODM is more of a manufacturing company than an R&D company and thus does not have the DNA or enough incentive to build a quality trackpad + drivers.