Hello @TrevorDearham,
One instance of SonarLint uses first available port in range 64120-64130 if there is at least one available. In your case I believe it’s 64123. Here is the link to the class that responsible for server.
Also you should see in logs exactly what port has been taken by current instance of SonarLint. Here you can see how to setup logs output in VSCode.
It will be the message “Started security hotspot handler on port $portNumber” if at least one port in range is available or the error message “Unable to start security hotspot handler” if whole range is taken by another apps. You can find logging code in the same class I referred above. So I don’t think list of ports in range 3297-3362 on screenshot you provided is taken by SonarLint.
I hope it helps and I’m ready to answer other questions you have.