Pop!_OS 20.04 vs. Ubuntu 20.04 Linux Performance

Given running 269 different tests and thus article being for satisfying a premium member's curiosity, here is the high level overview:

Where there was most often a performance difference between these two distributions were in FIO. With the I/O benchmarks, Pop!_OS 20.04 quite often was delivering significant I/O advantages off the Samsung 970 EVO Plus compared to upstream Ubuntu 20.04. But aside from some big FIO shockers, the rest of the differences between these two distributions amounted to a couple percentage point differences here and there.