First of all: thank you! The necessary info is there and it's written splendid. I think it or a future iteration should definitely be considered as a sticky post in the long run.

A few nitpicks which you may or may not agree with:

• In the section in which you talk about update frequency, you end the paragraph with something along the lines of "new and stable". While this is correct technically, you should define what you mean with 'stable' here. Because there exist two (somewhat related) definitions for 'stable':

  1. "(Certain) resistance to breaking" - which is used in the context of "stable rolling release" when one refers to something like openSUSE Tumbleweed. This definition does not necessarily oppose new.

  2. "Release model in which packages are frozen over a long(er) period of time and primarily only continue to receive security updates" - which is e.g. used in the name of the "Debian Stable" distro. This definition does oppose new.

• In the section about desktop environments you mentioned something along the lines that Fedora defaults to GNOME. This applies only to their Workstation and Silverblue distros. For which both other "Spins" exist, which happens to be the recommended method of installing another desktop environment on Fedora; similar to how "Flavors" work for something like Ubuntu. While one can technically install it like how you've mentioned it, I wouldn't recommend it to a newer user.