This specific legacy version included several usability improvements before the major jump to version 7.0:
: Version 6.22.515 was a stable release from RealVNC . It has since been succeeded by Version 7.x .
: You can drag application windows between different RealVNC Viewer windows when in Multi-Window mode.
: The "Session Information" dialog explicitly shows if your cloud connection is direct (peer-to-peer) or relayed through RealVNC's servers.
: Works across Windows (7, 8, 10, 11), macOS, Linux, and Raspberry Pi. Critical Security & Legal Considerations Download VNC Viewer for Linux by RealVNC®