Here’s the deal, most people from yesterdays started on Ubuntu or something similar. So, they suggest what worked for them. I just moved my wife away from Windows and straight into Fedora, I haven’t had to help her on anything other than once she could not find the printer (it’s on another VLAN and she was not connected to it 🙄). She is loving it and just last night told me, and I quote, “I should have changed sooner”.
Fedora just works, but another factor may be that Debian and Ubuntu based distros are LTS what le Fedora is more semi-rolling, this helps with stability, thus it makes sense to suggest something with less probability of breaking suddenly than something they may need to roll back.
As for atomic distros, YMMV. I find them sluggish during install, boot and when starting an app for the first time, and in my case, broken after a few updates (would not work on Wayland forcing me to log in over X11).