It's a Mechrevo Code 01 (TongFang PF5NU1G). It's sold by a number of OEMs including w/ Linux pre-installed as the KDE Slimbook, Tuxedo Pulse and others. Actually, I linked to almost all of the various OEM releases along with a detailed review from when I got mine last summer: https://www.notion.so/lhl/Mechrevo-Code-01-TongFang-PF5NU1G-...
Note, pretty soon, 5800H and 5800U laptops should be available. The new CPU should perform even better (Zen 3 based vs Zen 2) and in general seem there seem to be more premium builds coming. USB-C DP and 2.5K displays would be the big things I'd be looking for if I were shopping this year. Personally, I'm ok w/ waiting for for next gen though (USB 4.0).