all scenarios will start the same way, open two tabs, pin the first one
scenario 1
observe how the window closes with cmd-w
this led to orion crashing
scenario 2
observe how the window does NOT close pressing x, but then closes with a cmd-w on the new page
this led to orion crashing
scenario 3
same as this: viewsourc3
observe how the window does NOT close with clicking the x, and does NOT close from the right click menu
scenario 4
observe how the window does NOT close with right click menu, and does NOT close from right click menu
from this i can see that the function of right click->close tab does the same thing as the right click menu, but cmd-w does something different