If you close the RTM window (as opposed to quitting) and don't notice the little popup from the systray (as I failed to do multiple times), you'll probably think the app has exited. That's a common expectation for Windows users.

As such, you'd also expect that launching RTM from the Start menu would bring it back. But it doesn't, leaving one to think that the process is still running (correct) because it didn't close properly (wrong, but the confusion is understandable). And like many a battle-scarred Windows user, you head for Task Manager and kill all of the RTM processes so you can run it again. Which is pointless, because it was available from the systray all along.

Why this matters: most Windows programs exit when you close the window, and the ones that *don't* (including RTM) are hidden in the systray where they're easily overlooked. Compare this with the behavior of Mac apps that remain in the dock even after their windows have been closed, making them easy to return to.

It *is* possible to emulate the Mac behavior on Windows; Slack and Spotify act as if they're minimized when you "close" their windows, leaving them accessible from the Task Bar. I think that behavior is worth having on Windows — even if it's not standard — just because it makes things easier even if you didn't expect it.