once you have $KUBECONFIG setup correctly locally.. something like..

(⎈|local:default)➜  logs virtctl vnc ipxe-demo
{"component":"","level":"info","msg":"--proxy-only is set to false, listening on 127.0.0.1\n","pos":"vnc.go:116","timestamp":"2023-10-25T10:00:07.084471Z"}
{"component":"","level":"info","msg":"connection timeout: 1m0s","pos":"vnc.go:157","timestamp":"2023-10-25T10:00:07.088411Z"}
{"component":"","level":"info","msg":"VNC Client connected in 669.717917ms","pos":"vnc.go:170","timestamp":"2023-10-25T10:00:07.758135Z"}

will launch vnc viewer on your machine

vnc viewer needs to be installed as well