Ubuntu was my first when I started poking around with it. Not sure which version, but it was during the Unity era. Pop!_OS was the one I started using when I switched full time. I’m still using it on my main computer, but I’m also using Fedora, Ubuntu, NixOS, and Mint on other devices because I like variety!
I’m watching it from a distance to see how things go. I’m a fan of the Dune books and the new movies as well, so the world would be interesting to explore. Unfortunately everything I’ve seen of it gives me the feeling that it should have been a single player game instead.
What they mentioned about the player built houses was the first thing I thought of when I heard you could build your own. There’s going to be huge amounts of clutter everywhere you can build!