I have both Wireshark and XQuartz installed. It's been quite different that in an old OSX verson (Lion maybe) when installing Wireshark it would ask you to install X11.
Okay it's a new era. Installation of XQuartz can be done by myself willingly.
But when I try to launch Wireshark, XQuartz is launched as well, but I could not see the GUI of Wireshark, even though it is running.
Where is the window???
Seemingly we need to run this line of command after launching XQuartz first
And the next when I launch Wireshark, all is well.