It is often called C Hashtag but it is actually C .Net/(slash) Hashtag
Looks like they do add quite a bit security features. Having SELinux installed and working out of the box being the biggest. https://fedoraproject.org/wiki/Security_Features
I liked using fedora Sway spin on my Dell XPS 13. Sway because it let’s you utilise the screen space well and fedora spin because it came working out of the box, you can use it in any distro really.
On top of what other already said they accidentally DDOS’d the Aur repos and took it down for couple hours one time.