So I've just installed elementaryOS Juno again, updated everything, installed all my programs, when I noticed a weird bug, that occurs all the time.
When closing the right-click context menu, or a drop-down menu (e.g. in LibreOffice) the shadow of the menu remains on screen, which is not too bad, but annoys me.
Look at the desktop next to the window.
The interesting part: When I recorded the screenshot there was also an artifact where the right-click menu can be seen, so I am guessing, that it has something to do with elementaryOS still thinking that the menu is active, therefore still drawing the shadow?
I have searched for the problem, but only found one person with the same problem online, but no solution.
Maybe anyone here can help me to optimize my experience.
EDIT: Here is the related issue https://github.com/elementary/gala/issues/605