Red Hat was the first Linux I installed, about 24 years ago, and got hooked. Switched to Ubuntu about 19 years ago, and have used nothing but Debian and derivatives since. I’ve attempted Fedora a few times, but could not convince myself to stick to it.
I recently switched to Fedora after roughly two decades of using Ubuntu (started with Warty Warthog), Debian and their derivatives. Feels oddly comfortable, and strangely nostalgic having started using in Linux with Red Hat 24 years ago. I think both Ubuntu and Fedora have their issues, as well as their strengths. It just boils down to what issues and strengths are most important to you.