FOS: Stands for "Free Operating System" as an inclusive term. Includes GNU/Linux, NonGNU/Linux, *BSD that are meant to liberate ones computing.
I'll start, I use Linux Mint on my laptop that I use for work daily. It uses the latest Xanmod linux kernel and flatpaks for apps with GNU Guix providing everything else.
antix on the coding laptop (system76 gazelle), tinycore on the writing laptop (hp2000 bought for $80 in 2012), trisquel on the desktop.