As far as I know, for models currently on sale that applies only to their desktops (which are cool, but considerably more niche since people interested in desktops are likely to build their own), with their laptops being Clevos.
My personal opinion is that System76 isn't really targeting personal users with their desktop line, though, but instead is more focused on professional users. For example, I built my own desktop computer at home, but if I needed one for work for doing ML or just to have the increased compute over my company-issued laptop, there's no way that my organization would sign-off on letting me spec out my own parts from Newegg and spend a day or two building and testing the system, then trying to install NVIDIA drivers on Ubuntu.
What they would (and do) sign-off on is a one-time purchase of a desktop from an approved vendor for that desktop, which comes with out-of-the-box support for the NVIDIA GPU I've selected. That's more the niche that I feel System76 is really filling.
