If the author is serious, and works in a team, they would still need to worry about that "pesky" line length limit, though.

I really don't get the argument against short line lengths, and that they're somehow a relic of old display resolutions. I find them genuinely helpful.

Having to glance horizontally to read code is suboptimal compared to keeping my eyes fixed on a relatively narrow block. Being able to fit more documents open side-by-side without arbitrary line breaks is always helpful, especially when merging, even on ultrawide displays. This is why I still prefer shorter lengths, and try to keep it near the traditional 80 as much as possible. I compromise when working in a team and if someone has a different preference, but I never got the appeal, honestly.