@meeper @arcana @adiz @lucy for me what annoys me from opensuse is yast/their custom stuff. Also zypper is quite slow when downloading for me...
NixOS is a great OS for me and the only linux I can use comfortably, but learning it has a very steep curve but it's as powerful as it is hard to learn. I have a lot of configuration set up, from nixOS' own knobs, overlays (package modifications, adding or modifying), my own module (configuration setting). I can even configure gnome using nixOS, i set up extensions, gtk3 theme, and configure both extensions and gnome using the dconf module home-manager has. It's majestic.