Just discovered this trick recently and absolutely love it.
When you switch or open a different user in Chrome, instead of clicking the name icon at the top of the window, select Switch person, and pick the person from the list, you can just right-click the name icon and select the person right there from the context menu.
What’s even better, if the selected person is already open in another Chrome window, selecting to that person from the context menu will switch to that window automatically for you. Very convenient for people like me often having too many windows open on the desktop.
Since I often have two or three different users logged in Chrome at any given time, it’s definitely going to save me the time in the long run.