This is easily number one. I enjoy my computing experience when using Ubuntu. Whether it’s just using the computer for usual human things, noodling with new software from source, or getting new hardware working. It’s fun. I don’t find Windows or MacOS fun, at all. They work, but they’re not fun.
My Ubuntu systems are reliable. They don’t ever randomly break (much).
I’ve been using Ubuntu now for eighteen years. I know (roughly) how it works. I am familiar with the release cadence and set my expectations accordingly.
As you can see from my heterogenous list of devices, the majority run Ubuntu. So being able to try something on my laptop, and then be able to run the exact same command on my server, is pretty handy. Even though they all run different releases of Ubuntu, most of my systems are able to run the same software.
Referenced podcast on Linux Downtime
I understand, but sometimes it’s ok to change. I’ve used Ubuntu as a development OS (mainly for work) since ~2010. But on my PC I used Mint/Cinnamon for a few years but didn’t like it and since 2016 I’m using MX/Xfce, I really like it, fast, stable. I got a small 32bits netbook and will try to install AntiX 23 on it as soon as it gets out. On my Dell Latitude I may try Arch just for the fun of it.