Nice, I'll post mine as a reply since it's very similar :)

Work: when I started we were Centos/RHEL with some Debian, then pivoted to primarily Debian, now we have pivoted to Ubuntu.

Work Desktop: Besides obligatory Windows I have been on Gentoo +KDE for the last 10 years, but the Chromium portage build times as well as some weird performance degradation finally became too much and I just recently switched to NixOS (with newer hardware).

Home Server: Slackware/Gentoo for a while starting in the mid 2000's, then stuck with FreeBSD for over a decade. Since then I've just happy with Raspian on an rpi, but looking at switching it to NixOS

Home Desktop: Wasn't much of a category for me and usually just a Windows junkie at home, but recently been very pleased with SteamOS