[pessimizer]

I don't, and I suspect that people who would want Linux preinstalled don't have much experience in it, and being lost would hate it, badmouth it, and badmouth the company for making it an option. Installing Linux is quick and of trivial difficulty, and if you're afraid to do it you should probably work on that fear at a different time than when you're also breaking in a new computer.

I would say that installing Linux is like being able to tune your guitar or a chef being able to sharpen their knives, but it's an order of magnitude easier than either of those things.

Agree with sibling that maintaining preinstalled Linux is a good sign that all the guts and peripherals are compatible, although that might be a perverse incentive to use a bleeding edge kernel/distro to accommodate flashy hardware. If anything, they should install a boring LTS/Debian Stable, completely stock other than a custom wallpaper.