I think the Windows philosophy for UX is just "good enough so enterprise don't ditch Windows", which given its enterprise monopoly and very strong lock-in and almost complete lack of viable alternatives means they can do almost whatever (and looking at Windows 11, seems they do make use of that freedom). They don't have strong incentives to make their OS fun, as long as it sort of does the job. And even if they did try to fix trackpads, at the price point lots of corporate drone Windows laptops sell at, could they possibly include decent trackpad hardware?

Linux is kind of puzzling though, this has been a super glaring issue for what is now decades. Are the people who could fix this just set up to never ever leave the home row? Is it actually too hard for an open source endeavour like Desktop Linux?