I don't think they would. What market would that exactly be targeting? Devs, who are overwhelmingly just provided macbooks via their employer? They'll still run macOS because IT requires them to.

Linux Gamers? The arm story for proton still needs work (hopefully the steam frame will help). Nvidia+Microsoft are working on it with that new surface ultra, but verdicts out on whether that will boot Linux or not as its specifically a Microsoft partnership.

General non-dev, non-gaming, non-creative users? I don't think they'd buy a mac specifically for Linux either. That market is much better served by Framework, System76, Tuxedo, Lenovo (thinkpads), etc.

And Apple certainly isn't going to win over any FOSS purists either.

I think the intersection of "I want macbook pro hardware" and "I must run Linux natively on it for my workflow" is a lot smaller than you think.

Developers, of course.

Outside of the US, macOS is not that popular. Where I grew up, no school had Macs on their computer labs, but they did have Linux. You could have lived your entire life near computers and never been in contact with macOS. I had. The first time I saw macOS was in college in a digital media lab.

I like macOS, but I do prefer Linux.

I can't ask for a Framework, System76 or Tuxedo laptop at work because they don't sell them directly and locally (within my country). They don't want to risk importing these machines, sending them back if they're broken, and not having a local replacement. But since the iPod, Apple has had a meaningful global presence, so of course, I can ask for a Macbook.

For a while we could pick Intel Macbooks and install Linux, and maybe I live in a tiny bubble, but many people I know did just that.