Thought I’d add, I had no such luck with the 970 EVO Plus 2TB, using the Phoenix controller. Would be curious if perhaps you have the Elpis controller version. Mine worked ok for a period with intermittent crashes. Eventually, my 5B simply ceased to recognize it. Wound up moving it to my desktop where it works well.
I replaced the Samsung with the more power efficient SK Hynix P31 Gold. No problems since, and this drive runs cool.