It should be noted that i3wm installs and runs easily on distros such as Ubuntu and Fedora too - which is how I was introduced to it (after liking the tiling aspects from Unity, but not the graphics card/RAM hit that came with it).
The i3 edition of Manjaro is heavily customised and almost an entirely different beast (i3-gaps etc).
It mentions notion so I tried that for about 2 days before taking up a comment's suggestion to try i3.
Edit: I don't think there's an official guide for actually installing i3, but the official fedora blog has a good one. Searching for "install i3wm ubuntu" (or arch) would likely also show some good default setups.
