i'm aware of that 'issue' (sudden failure), if it even is an issue. i hope that the mbp's storage lasts as long as i want to keep the computer (6-7yrs, the age of my retired 2013 mbp).
concerning reads/writes, free space, swap space, etc. ... my usage represents some footprint on the storage medium but do not know how much of what i do is increasing the tally marks for my reads/writes.
i did not use DiskDx on my older mbp's original ssd (but I still have the SSD), but i did use the app to check the health of my newer OWC Aura Pro X2 ssd which is about 1.5yrs old. in that time span, the ssd logged about 36TB of data read/written to it and the app is saying that it's health is around 94%.
with a more recent 16" mbp I bought 2nd hand, the app is saying my storage health is 100% and - at the time i acquired it - had about 19TB of reads/writes. can't say how long the computer has been in use for since new, and going by the date it was officially released then i'd say the storage is in good health and lightly used.
i do use it for some audio/video work however i don't consider myself pro enough to use heavier tools like Logic, Adobe photo and video editing apps ... i stick with open-source such as audacity and gimp, and stock apps like garageband, imovie, etc.