No, actually, they don't. They work with Clevo to make them, and Clevo can sell the hardware, but the firmware is very different, and possibly some of the hardware as well.

see e.g. cassidyjames at https://news.ycombinator.com/item?id=17039414

There were a couple of great threads on Twitter, but it looks like Jeremy Soller isn't on anymore. (https://twitter.com/c4software/status/1322954098711400449 is one guy realizing too late that they're not the same, that likely precipitated https://mobile.twitter.com/jeremy_soller/status/132295496454... still in Google cache saying "A reminder that you shouldn't buy Clevo's and expect them to work like System76's"