I have extremely high "free memory". According to this site here it is better to have "free memory" as close to 0 as possible. What I understand is that this "free memory" is basically wasted memory as it is not being used at all.
If that is the case, how can I "release" this free memory or utilize this free memory? See below the free memory when I use
top (typically it is much, much higher):
MiB Mem : 7829.3 total, 2952.5 free, 1766.8 used, 3110.0 buff/cache MiB Swap: 2048.0 total, 2047.7 free, 0.2 used. 5727.4 avail Mem
FYI, I am using Xubuntu 19.10, Dual-boot with Windows 10, Core i5 2.5GHz if that helps.