Please identify the brand, model and capacity of the m.2 SSD you have.
Yes. SSD is especially prone to such a problem. In fact, the older SSD had firmware issues with sleep too, so they were best run in 7x24 environment and never powered off.
Yes, some of them do get really hot. I recall a hardware review website published a measurement of over 110 degrees Celsius several years ago.
No, this is not a Nucleus specific problem.
I reiterate my position that people should buy only from a SSD manufacturer who manufactures its own NAND chips.
Do not buy QLC, especially not for boot drive - even though everyone else thinks QLC is a good idea for read-only music data.