Note by @fastfinge

@quanin @mcourcel I'm also keeping a close eye on the Framework Community forums, and I haven't seen anyone else reporting this type of issue. So...yeah. Once I get the new motherboard I'll have a lot more testing options, and almost none of them will involve opening the laptop multiple times. And if the motherboard is failing, it's still under warranty, so I can go through the replacement process on the media PC while still having a working laptop. If the drive is failing, it's mine and I'll be sad and replace it. If the BIOS is failing, I'll at least have more proof of that.