This is a feature request.
User may use large screen 22~27 inch screen as well as high DPI screen nowadays. Although it's unlikely to use a 27 inch screen for a single browser but it's definitely worthwhile taking care of this situation too.
In a large screen, a line can have 200+ more letters which is impossible to scan as you tend to lose focus - I'm 23 with eyesight problem, maybe that's my problem.
This is however possible to be done by Global CSS but I believe it's a general need for all readers. That's the reason I create this task. Some may claim my CSS is ugly but the point is that it's not a time consuming task.
I know today's focus is phone. However, who actually throw their laptop or workstation?