The Linux binary (pre-built or packaged by your distro) is just a CLI. The Mac binary instead also contains a desktop app.
I agree with OP that this is very confusing. The fact the Mac OS installation comes with a desktop app is not documented anywhere at all! The only way you can discover this is by downloading the Mac binary.
Exit and all the users, processes etc, go away.
https://search.nixos.org/packages?channel=23.11&show=ollama&...