Anyone who needs an OS that is not a toy, that is relatively open (or rather, allows you to shoot yourself in the foot easily should you want to), that is not dependent on one "benevolent" dictator to not restrict what you can do.
For example, what useful things does Windows let you do which MacOS doesn't? The only thing I can name when comparing Windows to Linux, besides being able to run full-blown VisualStudio and Adobe, is app-level firewall, but Mac has LittleSnitch.
WSL for Unix compatible applications and not having to rely on brew, which is basically curl | sh for hipsters. Thirty years of backwards compatible apps. Thirty years of backwards compatible APIs. Doesn't ban you from their stores on a whim. Doesn't need a store even. Has a more sensible filesystem and organisation than MacOS (which is pretty damning considering how bad NTFS is). Actively, technically superior on every front then it comes to kernel or APIs, more hardened than anything Apple has ever put out.
