Sorry if it's duplicate, couldn't find other topics related to this. But would like to suggest a behaviour that windows has. When you have multiple displays, if you try to move your mouse between them in the border, you can't. This allows you to easily go to the border without flowing to the other display. When going for the close button or the first tab in the browser.
Since I'm used to it, I already closed the window in another display multiple times when I was trying to reach my first tab in the browser.