@sgunhouse Yeah you're completely misunderstanding what's happening here. It's not staying maximized, it's resizing it to be the resolution of my monitor, completely different. You still have to maximize it once you drag it to the other monitor, just now the default window size of that dragged tab is the size of your resolution, and that's what's causing problems.
Guess Ill try to explain it differently. Window A is 800x600 window size, you then maximize it to be full screen, you can un-maximize it to go back to 800x600. While Window A is maximized you drag a new tab over to another monitor, Window B. Window B is now Not Maximized at 1920x1080. You can then maximize it to full screen and un-maximize it back to 1920x1080. While Window B is not maximized it now has the issue of blocking the windows taskbar from unhiding on hover.
What Window B should be doing (and what it does on other browsers) is opening on the other monitor already maximized, and when I un-maximize it it should be 800x600 just like it was in Window A before it got dragged over and made Window B.