Fedora is not related to Debian or Ubuntu, so is not a true replacement.

PS I hear this release cycle thing quite a bit, what's the benefit? What software are you using that requires bleeding edge packages that can't be containerized?

For me, it's gaming which means updated Wayland and Nvidia drivers. I'm sure there are ways to do this with Debian, but I just went with Fedora to test it out, and I've liked it enough to keep it.

I did try Debian YEARS ago and Firefox was out of date in quite a scary way. It's unclear to me if I did something wrong there, but badly out of date web browsers can also be quite scary. At the time, I never looked into and just went back to Ubuntu.

Fedora was the truest replacement they found.

Debian unstable is bleeding edge. Tested snapshots of Debian testing are not. Containers have many of snaps' inconveniences and some of their own. And desktop environment and virtual machine software releases have often bug fixes and improvements I don't want to wait for 12 or 18 months longer.