neon@neon:~$ krfb
Wayland: Detected invalid configuration: preferredFrameBufferPlugin is not pipewire:  "xcb"
Wayland: Fixed preferredFrameBufferPlugin to "pw".
found plugin at  "/usr/lib/x86_64-linux-gnu/qt5/plugins/krfb/krfb_framebuffer_pw.so"
Loaded plugin with name  "pw"
found plugin at  "/usr/lib/x86_64-linux-gnu/qt5/plugins/krfb/krfb_framebuffer_qt.so"
Loaded plugin with name  "qt"
found plugin at  "/usr/lib/x86_64-linux-gnu/qt5/plugins/krfb/krfb_framebuffer_xcb.so"
Loaded plugin with name  "xcb"
Using FrameBuffer: "pw"
Initializing D-Bus connectivity with XDG Desktop Portal
Unsupported XDG Portal screencast interface version: 0
No valid framebuffer found. returning null.
QObject::connect(FrameBuffer, RfbServerManager): invalid nullptr parameter
Unable to get rbfserver screen