When clicking on "upcoming events" You get a moveable popup box.
The "box" can be moved by left-mouse-down-hold, and the place it where You like.
When hovering over the upper-right X it becomes red. If You click on it, the widdow closes again.
In top is shown a date interval.
This date interval is depending on the settings, in combination with the date in the date-picker field.
The upcoming box is a short-version of the upcoming list You get when choosing "upcoming" in options - view.
Beneath here is shown the upcoming box AND the upcoming view.
The events seen, is the same.