The unofficial spins of Ubuntu Linux 22.04 was quite enjoyable. Opinions on Unity were mixed but all of were positive about the experience. The experience Colin had with Rolling Rhino Remix were very interesting and would certainly be worth further exploration by those that are into playing around with rolling releases.
Ubuntu Cinnamon Remix
https://ubuntucinnamon.org/
Rolling Rhino Remix (Advance users only)
https://rollingrhino.org/
Ubuntu Unity
https://ubuntuunity.org/