The problem is that those drivers are awful if you plan to keep your computer for more than a year or two. Most Linux-first OEMs are shipping Nvidia, not just System76. I’ve had two computers I got secondhand with Nvidia GPUs, and that damn GPU was the bane of my existence, and from what I’m seeing, that situation hasn’t changed for the better at all.
Ideally, I would love to see things change, but it definitely seems like the majority of Linux users and OEMs are still using Nvidia GPUs, so Nvidia has no incentive to change.