So they were to cheap to put in a metal shield between components and screen.

I would not trust ANY of those super fast SSDs, be it NMVE or external SSDs with Gen 4 speeds, that offer write speeds of over 2000MB/s, which nowadays are almost all new models.

They tend to overheat and die miserably without warning.

Gen 3 in my experience seems to be more reliable and they also run cooler.

That.

I have an Evo 860, Evo 980 and Pro 980 all die in 16 months.

One failure, ok.

Two failures, could be coincidence,

but 3 complete failures across different product lines and you a systematic production problem.