keep in mind that some (most) manufacturers don't seem to give any craps about the users either, and provide shoddy bloatware drivers that are difficult to hunt down, take forever to install, often don't work with older or newer OS/hardware, etc.

and then there might be a specific patch or workaround that's been applied by the oem that keeps the computer from exploding, but they sold it anyway because you can blow yourself up as much as you like AFTER voiding the warranty.