Which Linux distro do you use, and why?

So, according to my memory, I asked this question on Tildes "not that long ago."

Then I checked.

Chat, it was a LONG time ago. Excuse me while I crumble into dust.

Anyway, given that the Linux landscape looks very different than it did not that long ago in 2018, I figure we're due for another topic like this:

• Which Linux distro do you use, and, most importantly, why do you prefer it?