Thanks for the link. Seeing such companies makes me confident that there will be always alternatives whatever the limitations put by so-said-brand manufacturers are.
It shouldn't make you confident. In the economy of scales involved, it takes very little for system76 to disappear and dell to stop selling linux laptops.
There are a bunch of Linux laptops for sale these days, they're called "Chromebooks".
You can install crouton to get a regular Linux environment.
There are limitations, of course. Especially if you want a lot of processing power. The primary places I use my Chromebook are where I have Internet connectivity, so I decided not to carry around all the computer power I need on a regular basis.