Qubes OS is a security-focused desktop operating system that separates apps and workflows into isolated qubes. Key features include:
- App and workflow compartmentalization with Xen virtualization
- Disposable qubes for opening risky files or links
- Separate network, USB, work, personal, and sensitive domains
- Strong pairing with Whonix for Tor-based workflows
- Best suited for users who can accept extra setup and hardware requirements