Just to add some more data here, M1 MBA 16GB Ram / 256GB SSD which I've been using for almost exactly two months:
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 34 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 0%
Data Units Read: 5,315,871 [2.72 TB]
Data Units Written: 2,249,290 [1.15 TB]