Hmmm. Looks like I need to move my temp dir for GeForce instant replay off of my SSD. It records about 1.6GB/5min which is 460GB per day. RAM disk would probably be the best option.
I'm pretty sure it doesn't record the desktop with instant unless you have specifically set that up, so you'd only be writing to the drive while you're in game.
At my current job I do at least 150-200GB of writes per day.
50GB for code temporary files, 70+ GB for data files, x2 that for packing them, and then also deleting some of those to make some room to do it again.
Also the disk that it's on is over 50% full so that also degrades it faster as there's fewer blocks to wear level with.