In the top right, it shows that I am signed in to my account and shows my email address. Where is the option to sign out? When I right-click nothing happens. It doesn't show a drop down.
I had never noticed that, but checking now, I see this:
On X7, a left-click on that icon brings up a "sign out" dialog.
On X8, a left-click on that icon bring up the Welcome Screen, showing the "Product Details" page. I don't see any "sign out".
Of course, X7 is of a vintage where one didn't need to be "signed in" simply to use the product...