I too have always been interested in such devices, and am also now in the Linux world. (My default distro is Manjaro with xfce). I'm currently considering an Astro Slide Or a Galago Pro, but availability of both devices is spotty. Everything you've said suggests that something like the Galago would serve me better. Source: about 1 year ago

As you are in the US, you might be more interested in the Galago Pro from System76. Source: over 1 year ago

System76 seems to be pretty popular for Linux based laptops. I don't know off the top of my head if they check all the boxes, but probably a few at least. For example: Https://system76.com/laptops/galago. Source: almost 2 years ago

The fix is open-source firmware, like Coreboot or LinuxBoot. Incumbent PC-compatible vendors aren't too interested, but there's more than enough room at the table for offshore and onshore vendors to use open firmware as a feature. Google, Purism, and System76 are some of the vendors doing this. Source: about 2 years ago

I bought a Galago Pro from System 76 a couple years ago and have not had any problems. It bn my favorite laptop I've ever owned tbh. Source: over 2 years ago

There is also Mos, it is a bit smoother in my experience: https://mos.caldis.me/. - Source: Hacker News / 27 days ago

It looks like this competes with Mos.app[0]. Honestly, I'm not sure how folks use non-magic mice without this. [0]: https://mos.caldis.me. - Source: Hacker News / 11 months ago

Not to take away from this app, but I’ve been using Mos (https://mos.caldis.me) for a couple of years now and it’s been just enough to mitigate the faults I had with default mouse settings in macOS. - Source: Hacker News / about 1 year ago

I recommend MOS to fix the scrolling issue. It also adds a sexy-as-$uck smooth scrolling animation. Source: about 1 year ago

You’ll need a mouse Utility to fix it. If it’s just scrolling, MOS does the job, and when you’re not gaming, gives you such a smooth scroll, it’ll feel better than sex. Source: about 1 year ago