OK guys, I've been using a small software called Primocache for over a year. Like me, your Steam library is probably sit on a normal internal slow magnetic drive and you probably have an SSD or M.2 SSD as a boot drive. That little software called Primocache utilises your extra RAM and/or part of your SSD as cache. What are the results?
Faster boot time
More responsive system
Less stress on the components.
I know that I sound like a salesman lol but it is a pretty bad ass. Never had any issues with it at all.
Pretty much works like the memory module Optane from Intel with using your SSD/RAM as cache. You can pick and choose or use both.
Give a try for yourself. It is free for 60 days. I personally bought the thing. You pretty much have SSD boot time on a magnetic drive.
Super easy to use , you don't need to be Einstein.
https://www.romexsoftware.com/en-us/primo-cache/index.html
I've been using it for a long time in combination with a spare SSD. The caching feature is nice.
I tried the trial. It's very nice. I think it is very useful to me.