As a Debian user I find myself more in the Archwiki. Indeed one of the top resources for power users and sysadmins.
The Debian wiki has improved (from a total mess to the occasion helpful content). Sadly it's orders of magnitudes away from the rigorous approach of the Archwiki.
> Indeed one of the top resources for power users and sysadmins
Back when I was just starting out with Ubuntu, the Arch wiki was super helpful to gain better understanding of various things I came across. I think the wiki in general is useful to anyone who wants to understand things deeper, not just power users and sysadmins :)