I'm similarly throwing in the towel. I tested a few units with me and one of my team, both 11g. Mine freezes constantly, even after swapping out the mainboard and going through a loooong back-and-forth of testing with support. Colleague's has thermal management issues from time to time, occasional freezes but not nearly as bad as the unit I'musing. Both of us tested several operating systems from Linux as well as Win 10 pro.
Unfortunately, we didn't get an extended warranty, so its a loss. Hoping Framework can address their quality issues because the notion of extensibility and repairability is fantastic. We'll look forward to checking in on them in a few years after they work through the QA issues. Gotta having a laptop that works.