In fairness, Dropbox's primary interface on desktops is "my files are there" and nothing else. I can understand why they'd spend most of their UX effort concentrating on platforms where it's not as transparent.
you used to click on the icon in the taskbar and get a menu only. Now you get a full popup with a home screen , advertisements and "notifications" (even though windows has integrated notifications. Never used it
I have never clicked on this before, but mine on Windows 10 isn't what you described, and even if it was... why would I ever click on it? My files are backed up and show up on other machines. They could put animal porn in the UI and I don't think I'd notice.
