been testing this quite a lot for star citizen which regularly sees 20-40 GB use. zram is the easiest solution to avoiding OOM Killer by a long shot. zswap was swapping over 100 GB to disk cumulative throughout the day and still oom killing the game. zswap is also a pain in the ass to configure for the lay user and harder to get human readable stats. I don't want lay users going anywhere near their bootloader but zswap is all kernel command line to make permanent changes