There is a clear ambiguity that feels very important - in one way my work's "primary operating system" is Debian because that's what our images are built using and what we deploy. But my computer is running OS X.
If you're doing anything Docker, you probably prefer Linux.
So unless you're developing exclusively for Apple's ecosystem, you probably selected Linux on the survey.
Eventually i imagine my laptop will also be Linux, but Mac is hard to beat for mobile operating. I'm tempted to try an M1 via Asahi at some point, assuming i can get NixOS on it.. but i don't have an M1 atm and am in no rush to buy one.