I read the release notes of Ubuntu Mate and I have to say that it sounds as exciting as Ubuntu was in its Gnome 2 days. I can feel the passion and community behind that post by Martin Wimpress and it is already years that I tried Ubuntu Mate.
I’m not a regular user of either Ubuntu or Fedora though I tend to have both floating around in a VM when I have room for them. I’ve been enjoying my experience with KDE so far, in BugSquad not development (so far) and I might see what instructions there are for OS Beta-testing and chip-in for Ubuntu and/or Fedora if it seems relatively straightforward to get into
Always exciting when either of these distros have a new release imminent!