Western Digital Dashboard. Install it, run it, see what it says.
Most SSD failures we have seen at work have been sudden. Sometimes, though, they seem to flake out slowly like a spinning platter type drive.
I just ordered a new computer; a Lenovo IdeaPad (that's their cheap series) "Gaming 3I". 10-gen Intel I5 processor, NVIDIA graphics card, 8GB of RAM (single stick and an empty slot) and a tiny SSD. I wanted something with a 15" 1080p screen and either a discrete graphics card or a I7, Xeon, or Ryzen processor, and this is what I came up with.
Should I add another SSD to boost the storage, or a spinning platter HDD? (it has a hard-to-get-to empty drive bay in addition to the SSD)
I guess I should wait until I start getting low on storage before I throw more money at upgrades :) But I'll probably at some point add a second 8GB memory stick that matches the first so it can go dual channel, and maybe a 500 or 750 GB drive of some sort.
Pretty much as soon as I bought it, Amazon put a better configuration of the same thing on sale for about the same price I paid (the one with the Ryzen processor and 120Hz display), and I could have used my Amazon Prime credit card points to pay for half of it.