[Window Size page]
Optimize your site for window resolution
there is a case when you open 2 applications on half of the screen, some sites are optimized and all the content you can see.
Example if user open website 1920x1080 / 2 (960/540) auto hide left bar menu and show only if user click icon menu in top.
content post resize and right bar move to left.
Yes we have a mobile version it is good but it is designed for a smaller screen size.
I agree - I find myself hiding the menu bar too often when I'm working with windows side by side.