Linux distro on minibook x?

Unfortunately not. I tried right away after your message with a fresh NixOS install running Kernel 6.4.2, and the problem is still there. The easiest way I’ve been able to get the problem to rear its head is to boot up a game of some kind and play just a little bit, as heat seems to increase the likeliness of it happening. Less than two minutes into a Xonotic session against bots and my entire keyboard stopped responding again, which is one of a few ways this issue exposes itself.

So unfortunate, as this device is completely unusable for me due to this issue :(.