Since a few months ago, the Steam window no longer maximizes or resizes correctly. Often, the window will go maximized but will still behave as if it were windowed. The corners remain rounded, the window can still be resized, and the maximize icon does not update. Restoring the window and maximizing it again seems to fix the issue for a bit, but it comes back pretty soon after. Another issue is the window glitching visually while maximized.