[Minor49er]

All of my main external displays are 27". The diffs fit perfectly on them with the 80 character limit

[shiroiushi]

You must have your text size set to 18pt or something, because I can easily fit 3-4 columns of 80-char text on my 27" monitors.

[Minor49er]

It's whatever the default scaling is on GitHub. I could fit more in other contexts of course, but on the site, that's the perfect size with a 27" monitor