I don't know if anyone else has run into this yet or not. But this isn't really a bug, more of an annoyance.
I was downloading some games from GoG, and came over here to add them while they were downloading. Only I couldn't see the add to collection buttons and such at the bottom of the screen because the download bar is down there. And I got to thinking about it, and other messages and pop-ups from windows and stuff appear down there as well.
Maybe having the buttons pop-up in a smaller window, or on top of the window instead of the bottom?