Even on typical 16:9 screens it's rare that I would maximize a browser window. And on my ultrawide, usually I'll have browser windows at 30%-50% of the screen w

Even on typical 16:9 screens it's rare that I would maximize a browser window. And on my ultrawide, usually I'll have browser windows at 30%-50% of the screen width. So websites look normal - I'm not looking for any special "ultrawide" behavior from the site. For me the ultrawide replaced a multi-monitor setup so I am generally looking to use the extra space for multitasking, not simply for making everything huge.