Don't forget Part 2: https://haydenjames.io/linux-performance-almost-always-add-s...
zram is cool, and I've noticed Fedora uses it out of the box. Much better than regular swap space on a disk.
https://wiki.archlinux.org/title/Improving_performance#zram_...
Interestingly, my 64GB desktop has 50GB available between free and caches, yet has 95MB of swap space used (out of 8GB zram). How can I tell which process is swapped out? Probably something which I haven't ever needed since I've booted the PC.