Oops, thank you for catching that! This is fixed for the next release, which should be in a day or 2. Please check it to make sure it is working as expected.
BTW, please remember that when VS calls TopMost, it will stay TopMost until another window calls TopMost, which does not happen that often. So to test, just make sure you are running an app that actually calls TopMost. Otherwise, if VS is the last to call TopMost, and you start Chrome, VS will stay on top… until another windows actually calls TopMost. I hope that makes sense, but if not please let me know.