OS subreddit sizes as of 2024-04-18
name			K users	active
r/Andoid		2700	616
r/linux			1200	429
r/chromeos		575	77
r/unixporn		468	155
r/ios			376	231
r/MacOS			330	266
r/linuxmasterrace	300	61
r/windows		299	148
r/linux_gaming		276	404
r/linuxquestions	256	185
r/archlinux		255	143
r/linux4noobs		232	137
r/Ubuntu		225	92
r/Fedora		95	83
r/linuxmint		90	61
r/debian		78	85
r/ManjaroLinux		70	16
r/pop_os		69	51
r/openSUSE		31	33
r/freebsd		30	90
r/Gentoo		26	12
r/NixOS			23	45
r/openbsd		18	22
r/voidlinux		13	19
r/SolusProject		11	6
r/slackware		5.1	4
r/NetBSD		3.5	5
r/AlpineLinux		3.3	2
r/GUIX			3.2	5