It was tiling window managers that got me on Manjaro. A few years ago I got interested in he idea of tiling WMs and Manjaro shipped an iso with i3wm as default. At the time it was intended as an experiment really, but I liked i3wm so much I stuck with it. Manjaro + i3wm had been my daily driver for several years. For my work it's important that I always have my dev environment available (I keep a second machine configured, just in case) and have found any issues with my OS have been fairly easily resolved, without having to re-install. I did not find this to be the case on Mac OS, a few years ago anyway.
I recently got a new laptop and decided to try Arch. I gave up after a while (I think I was tripped up trying to install alongside Windows). I also tried Endeavour, and for reasons I cannot recall also gave up after an hour or two. I'm sure I would have got there in the end, but I ran out of time and went with Manjaro again which installed very easily (to be fair though, I have done it a few times).
What's vaguely interesting to me is that the choice of window manager is what has got me where I am. I wonder how many other people have found that their window manager preference has driven their choice of OS?