Interesting, interesting. You should be aware that the usual SSD tools are not usable for NVME M.2, as these are completely different things. Basically different things. And that's probably why you get pretty weird results. And one more thing. Even with regular SSDs (there are four main types), these "SSD tools" usually give you completely randomly "from the heaven" taken results.
Unfortunately, SMART doesn't have any specific standard. So, some SSDs report the written and read data in bytes, others in megabytes and some in bits and it causes those confusions. Of course you don't have 371PB written. The SSD would be dead... The best way to get an accurate reading is to use a tool from the ssd manufacturer (micron). By the way, the BIOS only cares about a single bit: SMART is OK or SMART is BAD and looks like the smart status is OK so that strange icon that you see on boot is not related to this.
SMART is only an acronym that comes from words Specific Measurable Achievable Realistic Timely Therefore, a SMART goal incorporates all of these criteria to help focus your efforts and increase the chances of achieving your goal. But it is not any way related to cristals and atom, that contains in what ever electronical system, including in diodes, transistors, micrkeeps, SSD-s, RAM-s, NvMe-s etc. These criterias are only for humans who made this system. Any electronical system don't know about any kind of human acronyms anything and works on it's own as the nature have set up. So, if You speak aboud above named electronics, there is absolutely nothing to do with this weird SMART. If you have the time and the will, try to read what are atoms and what are crystals, and if there is still willpower, learn a little about atomic physics. Then is possible to understand how such a things works. Everything that shines/glitters is not gold. And all that is white is not milk. By the same way HDD, SSD, NvMe, RAM etc are not the same.