There is StarLab https://starlabs.systems although they don’t make ARM laptops if that’s what you are asking for.
[1] https://www.reddit.com/r/linuxhardware/comments/yjuahx/star_...
Clearly Framework is not supporting Linux if there are issues with suspend.
The problem with System76 is that Lenovo exists. There isn’t much of a real reason to buy a “standard laptop” like system76 over a higher volume OEM like Lenovo.
With Framework you’re at least getting the extreme modularity and upgradeability as a major differentiator.
But with System76 you’re essentially getting a regular laptop that you could get from any other major brand. You’ll have an easier time getting parts with Lenovo.