Corsair Force M500 heatsink/sticker (+ StoreMI)

[strumpusplunket]

I've got a Corsair M500 120GB Nvme SSD arriving to go in my Strix X470-F motherboard later this week. (I was going to get a WD Black 256GB drive, but I had already gone over-budget...)

One complaint I've noticed about these drives is that they run hot. However, the Strix board has an M2 slot with a heatsink on it, which I am hoping will keep the drive cooler. One thing I'm unsure of, though, is that the drive also apparently comes fitted with a copper-infused/layered sticker or something to dissipate heat. So, I'm wondering, would I need to remove this before using the board's heatsink? Or just put the heatsink over this sticker thingy? I've not been able to find a definite answer on this.

Be good to be ready to go when it all arrives!

Also, I've been liking the sound of StoreMI on the 470 chipset, but a few things I'm not clear on:

1. Will it still be worthwhile with a main drive as small as 120GB?
2. I was planning on putting my work folder on the nvme SSD to speed up loading times, but would this actually be unnecessart/counter-productive if I use StoreMI? (Work folder is currently about 12GB in size, but growing gradually).
3. I've heard it's not caching software, but physically moves your files? This sounds odd to me. Would it actually take files off my SATA SSD/HDDs and park them on the nvme drive? Wouldn't this increase the risk of losing data?

Any answers gratefully received!