Do you get a window? If so, you can xkill (or the Wayland equivalent, if you compositor provides one).
Failing that, yeah, it can be quite difficult to identify the right proc to kill. Sometimes showing the process “tree” and the full “command line” can help.
Steam does something weird when running a Windows game via Proton. I haven’t figured out which task to kill to kill a game it’s running.
Do you get a window? If so, you can xkill (or the Wayland equivalent, if you compositor provides one).
Failing that, yeah, it can be quite difficult to identify the right proc to kill. Sometimes showing the process “tree” and the full “command line” can help.
Beat of luck!