TigerVNC

v1.13.0 is out as of 2023-02-05. Yes, it runs on macOS 13.x. Here are the release notes: --> TigerVNC 1.13.0 is now available. The most prominent changes in this release are: • The servers and native viewer now support RealVNC's RSA-AES authentication methods and encryption • The native viewer is now translated to Romanian and Georgian • The native viewer now (optionally) supports PiKVM's H.264 encoding • The display settings for the native viewer have been overhauled to make them easier to understand • The native viewer now supports adding exceptions for expired certificates • Resolved an issue where full-screen mode didn't work in the native viewer on macOS 13 • Lock key synchronization has been re-enabled in the native viewer after being accidentally disabled in 1.11.0 • Xvnc/libvnc.so can now be built with Xorg 1.21 • x0vncserver is a bit better at handling differing server and client keyboard layout • x0vncserver now correctly handles zaphod mode • Added Ubuntu 22.04 and RHEL 9 packages - - The direct download link is: https://sourceforge.net/projects/tigervnc/files/stable/1.13.0/TigerVNC-1.13.0.dmg/download

This works great on my Mac managing a Ubuntu desktop 18.04 running Vino-server on the Linux side. Works like a charm.

Open source freeware. Here are the version 1.9.0 release notes:

• Alternative, "raw" keyboard mode in the native client and all servers
• CapsLock/NumLock/ScrollLock synchronisation in the native client and all servers
• Automatic "repair" of JPEG artefacts on screen in all servers
• Support for UNIX sockets in the native client and in the UNIX servers
• Both clients now warn when sending the password over a possibly insecure channel
• Performance improvements in the Java client
• The Java client now requires Java 7
• Improved high latency handling in all servers
• Better keyboard handling in the native client on Windows
• Slightly better keyboard handling in x0vncserver
• x0vncserver now supports cursors and screen resize
• Xorg 1.20 can now be used as a base for Xvnc/libvnc.so