I press Win/Super+Arrow to bring browser to the side when screenshotting. It depends on DE, but Windows 8+ and KDE Plasma both have this hotkey working in my experience. A little effort on my side saves way more time/effort to others. And even on desktop I prefer reasonable line lenght that is easier to follow, and various classic newspapers around the world thought the same by breaking blocks of text into thin vertical columns.

That’s more of a recommendation than a critique.