It was nice to see you included a TPM 2.0 chip in the Surbook! Very nice.
This being a mobile device, in the event it gets stolen, I encrypted with Bitlocker and was delighted to see the TPM 2.0 to store the keys.
Also, I did CrystalDiskMark drive test before and after encryption and there was only a small drop in sequential read speed. Not enough to be noticeable and thus completely worth doing full disk encryption. No impact on the CPU at all with FDE (full disk encryption)
The Sandisk eMMC 5.0 128GB storage is quite speedy (not like an ssd of course) but it can read 260 MB/s and write at 107 MB/s , that is plenty fast!
It continues to impress! Nice job!