We designed the Framework Laptop from the outset to be a great Linux laptop, and the Framework Laptop DIY Edition comes with no OS loaded to let you bring your favorite Linux distribution. We deliberately selected components and modules that didn’t require new kernel driver development and have been
Nice, Ubuntu LTS (22.04) seems to fully work out of the box. Although I’d have expected more distros to work like that (even the officially-supported Fedora needs some extra steps to get everything running and its stability is described as “some risk”).
Not yet fully since fingerprint is not supported in all variants.
Also with the “stability” topic. This can mean everthing from hibernation issues to power management.
I think Framework knows exactly why they don’t offer preinstalled Linux yet.