docs: Rewrite other Linux requirements text.

This is a bit clearer and more appropriate for the heading-based setup
of this page.

docs/development/setup-recommended.md

@@ -90,10 +90,11 @@ the internet.)
 :::{tab-item} Other Linux
 :sync: os-other-linux
 
-- Other Linux distributions work great too, but we don't maintain
+- Any Linux distribution should work, if it supports Git, Vagrant and
-  documentation for installing Vagrant and Docker on those systems, so
+  Docker. We don't maintain documentation for installing Vagrant,
-  you'll need to find a separate guide to reference while working
+  Docker, and other dependencies on those systems, so you'll want to
-  through the setup instructions here.
+  roughly follow the Ubuntu/Debian instructions, using upstream
+  documentation for installing dependencies.
   :::
 
 ::::