I'm using Fedora, mainly because I've been using it since around 2004.
I've tried some other distros over the decades, but I've come back to it each and every time.
DE is Hyprland right now, but I'm ambivalent about it. Wayland isn't as great as many of the shills say it is. I wish X11Libre makes some moves and then I'll probably go back to it, but I'll keep using Hyprland on X11Libre if possible.
Before that, I was using SuSE, which was fine being a Linux newb in 1998, but there's no point in using it anymore.