I've actually been using Haiku as my primary work OS for a while now. I don't need much software beyond a web browser and a text editor (increasingly true for many people I imagine) and Haiku offers some benefits over Linux in simple shell features like stack & tile window management. Check out the User Guide[0] for a sense of the unique features.
[0]: https://www.haiku-os.org/docs/userguide/en/contents.html