

Most support reflashing the UEFI, but Linux or Windows support is better on some than others. Biggest problem now is disabling write-protect on the flash: used to just be a screw, now you have to use a special USB cable: https://docs.chrultrabook.com/docs/firmware/supported-devices.html#firmware-and-os-support
This one has anus in the name https://manus.im/