Something has happened to my post.
The 2x 4TB SSDs are massively overheating. According to the specs the temperature should be 70°C, but after 300-400GB of constant writes such as when wiping, the drives reach over 80°C and start to slow down. At 84°C it's like 20 MB/sec. writes or less and then at 85°C some kind of aqua screens of death (if the boot SSD #1) with one of those scanner codes on the display. I guess everyone is supposed to have a scanner nearby, but it's obvious what occurred. The problem is that of course there are no heatsinks in the laptop. I got the NVMe 3.0 drives because they are supposedly lower power and these are rated at 5100 TBW (1275x), 0.7 DWPD at 5 years, which is better than most M.2 drives that are less than half of that. Do you think the SDS are/will be damaged by the brief excursions?